This sounds almost correct if by earning money you mean running a gambling business. There's not much of a work to do, you just need to organize a few games and get a lot of money to for your bankroll. After that you just sit and process payments. Most of the difficulties lie in the field of security and avoiding attention of police, unless you run legal business. And of course you need to advertise your business.

Looking on gambling as source of profit is a very bad idea, you will always have a negative expected value. Also, if you can afford to lose a big sum, than either this sum is not big for you or you are crazy.
 In other case, if you can't afford to lose a big sum (for example, if it's all your money and you need to buy food, pay bills, etc), than you definitely shouldn't gamble, because the negative value of loss will be much bigger than the value of win.

So, when you think about big bets, always ask yourself what will happen if you lose. How hard it will hit you, do you really ready to give up that money or no?

Casinos usually have limit on a maximum amount that can be won with one bet (which is determined by the size of a bankroll), so whales are forced to make a huge amount of bets to win big (in your example, losing all investment means that casino loses whole bankroll). And when someone is making big amount of bets, the house edge will come up.
So, If casino has this rule investors are relatively safe, they won't see any big loses. This is actually the reason why casinos accept investments, they want bigger bankrolls to increase their maximum win amount for a single bet, to attract more whales and highrollers.

I think you have a confirmation bias, you simply don't notice small loses but notice big loses because they hurt much more. Just make sure that your gambling sites are provably fair.

I personally lost almost all my big bets, but I made only a few of them, so the sample size is not big enough to say "I'm losing too much high bets". The same might be true for other people.

But smaller bankrolls also mean more risk, I wouldn't feel safe investing in a bankroll proportional to bankrolls of some whales. Even in Crypto-games their profit almost touched zero, before radically soaring, which is great for owners and investors, but very risky, although now all bankrolls seem to be funded well.

By the way, one very important thing before investing is to look on the size of maximum win in one bet. It should be 1% of the bankroll or less, this is a defense mechanism against whales, so someone with thousands of bitcoin can't come and win all bankroll in a few bets.

The profit you can make from gambling is tied to your bankroll. If you have $1000 you can win $10 with chance of 100 to 1. But if you have $10 the chance of winning the same $10 will be 1 to 1. So, to make a profit you need a very big amount of money and set a very small target, for example 1/100 of your bankroll. So, keep in mind that the more profit you want, the more money you need to invest.

The problem is, some people get their lives ruined by gambling. They fall into debts, lose all their possessions, sometimes they take loans from criminals who later injure or kill them. Like many addicts, pathological gamblers don't realize their problem unti it's too late, so it's their friends and families who must watch over them and drag them out of unhealthy gambling.
Every gambler should remember to play only for fun with small amounts and never wager any money they are not ready to lose. And even thinking about taking a loan for gambling is unacceptable.

If done correctly, trading is much safe, in my opinion, because trading is not completely random, there are causes and effects. There are many professional traders, but not much professional gamblers (most of them are poker players). Did you ever heard about someone making a living with dice or slots?
Also, sports betting is probably the closest to trading, since you can try to predict the outcome by analyzing some information.

No. There are so many better ways to spend your money, you can donate for charity and save some lives, you can fund some researches, you can invest this money or start your own business. There are countless possibilities to make good for yourself or other individuals or society as a whole. But if spending big money on gambling is essentially just giving them to casino owners. So I would only gamble with small amounts and preferably in PvP games like Poker.

I guess you gamble because you think you will win, so maybe try thinking otherwise. Each time you want to gamble just say to yourself "I will lose all my money" and remember all your big loses. This way you will link gambling with negative emotions and it might help you to stop gambling. Also, don't procrastinate, always keep yourself busy and spend time with other people.

You can and eventually will get a lose streak which will make you lose significantly higher percent than this target. It's better to gamble just for fun with the amount you don't mind losing.
Otherwise gambling is very unsafe, because the longer you play, the more you lose, odds work against you.

It's 4-5% per month on average. There are a lot of highrollers recently, so investors see losses for a few days, but on larger scale it's quite profitable. The bankroll keeps increasing, was 350 before BTC crash, so it might become a bit less profitable in the future, if new big investors will come.



Crypto-games.net also keeps more of their statistic open than other sites, here's is their total profit chart.

To fight any addiction, you should always keep yourself occupied with something: your hobby, sports, socializing, work, books/movies/games, etc. When you are bored you are very vulnerable to addictions, so keep doing something all the time!

Crypto-games.net is very good for investment, because their bankroll is only 300 BTC and they share 80% of the profit with investors. I'm investing there for 4 months and never regretted it.

Sorry, but you don't know what are you talking about. Gambling sites don't guarantee profit so they can't be ponzi schemes. Gambling sites just use investors funds as their bankroll and share their profit/loss with investors accordingly. But ponzi schemes and hyips always guarantee a stable profit to lure their victims.

It's the same as extreme sports, people like the feel of overcoming a danger. So when gamblers win they are happy not only because they got profit, but also because they didn't lose their money.

Slots usually have the biggest house edge so they are quite depressing to play for me. But making 4 or 5 hits feels really good.

Gambling sites like to keep most of their money in offline wallets, they need only fraction of their wallet in hot wallets.

On the other hand, exchanges for some reasons don't use them.

Here's some read:
https://news.bitcoin.com/bitfinex-us-regulation-cold-storage/

If it is working only sometimes than it is not working at all. There are no strategies that will increase your chances to win, it's mathematically impossible.

When you invest in gambling you have 2 things on your side: house edge and big number of rolls. Together they generate a steady profit.

I personally see a 3-5% profit per month with my investment over last 4 months, and I'm really happy with it.