If you are deceived again, then you, were not very cautious and attentive. There are a lot of scammers, so you should always check people you work with.
I also think that Cardano will be a very strong competitor among systems in which it is possible to make transactions.It's developers prefer a more professional approach to new technologies.
There are many different places. For example Bitfinex, Binance, Exmo, Kraken and many others. This is the most respectable places to buy or sell some crypto.
You have a pretty big deposit. You do not need to invest more money in crypto-currencies. Wait half a year and then you will see whether it is worthwhile to increase the deposit or not.
There are fears that bitcoin will grow to 9,000 per week. Now it's best to buy and wait, or keep those bitcoins that you have before the price rises. But the first option is very dangerous.
In real life, a lot of scammers who can steal your money from a credit card or even a purse. Theft in the crypto-currency market is not as frequent as in the real world
Why not?? Bounties bring me some additional money. What is more it helps me to find some interesting projects and communicate with different bounty hunters.
I have already told a hundred times to different traders and investors - do not exchange your bitcoins for other alts and shitcoins. This is foolish and in the future you will regret that you did it.
This forum is the main source. Than I follow different telegram-channels devoted to cryptocurrency, market and so on. I also check the statics on Binance, HitBTC, Exmo and Bitscreener.