Asked too many times but the answer still remains.
Even with ETH's innovations and a lot of altcoins in the market has been constantly improving their scalability. Smaller transaction fees and faster transactions, but still people trusts and use Bitcoin.

Still, it's far from happening that some altcoin will take Bitcoin's place. The only closest alt  to Bitcoin is ETH.

I don't think it's necessary, it's enough to know the basics of trading by learning through several sites that discuss trading, but the most important thing in my opinion is to know a lot of things from the experiences of friends or people who trade first.
and for the first time to enter a trade, it is highly recommended to bring a small capital to avoid unwanted risks, the best learning is with our own experience. So, that's why when we understand the basics of trading, we can just trade with a small capital from where we will get a lot of learning.

Yes, that's what you need. Stop loss is a good tool, especially when you are away from the charts. But, I suggest you to try manual trading for now. Learning stop loss feature can be done later on. But, if you are already struggling to trade manually then it's time for you to use stop loss. It is a good thing to cut your losses and can surely earn.

Holding is never that easy as people  are thinking they will hold and can get profit, whether there are some of the family problems and the situation where some traders want to hold the coins, but it is too difficult for them at the position to hold this they sell, So, I think day trading will be favorable here as compared to holding.

You think too far into the future, it's better if we talk more about the reality that has happened and measure it fairly into the future. The point is that Bitcoin will become a means of payment in the future among humans and its popularity on the internet will play a more important role than now. Well, surely Bitcoin is long-lived.

What about countries that seized bitcoins from people, should we also count them as countries that owns bitcoins? Just asking this because I know of a few countries that are hoarding bitcoins they seized in one or the other. Although the case of El Salvador may be something different because their government actually invested money in bitcoin, and not by confiscating it. Other countries that possibly might be holding bitcoin by now are United States, North Korea, Bulgaria, and Sweden. These countries were once in possession of bitcoin, but I can’t tell if they are still holding these coins or not.

Yes the trading strategy should be changed every time. So if you have a specific strategy, the probability of loss is 100%. You need to change your strategy as time goes on. This huge amount of market analysis and regular stay up to date with the latest news. You have to constantly serve the market with new strategies. Then I think it is possible to do well in trading.

Staking a coin is not considered investing to make money. I mean it is "investing" as in you have it, and you could definitely sell it when the price increases, so all of those things are investing into it, but usually when you invest, that is considered something just financial only, whereas when you do staking there is something tech related as well, staking requires a bit of knowledge in how to do that.

Staking is also something you do without really caring about the price directly, for example I start staking a coin today and want to stake it for 7 days and want to get out, I do not really care about the price as much as I care about my staking reward, if I can make a decent return from my staking, price could stay the same, so stakers usually care about the period they stake and not long term.

Broadly speaking, the opportunity to be in new ATH is definitely still there, we know that not only bad news in this world affects Bitcoin, but there is also still a lot of good news and positive feedback from many parties. Well, just prepare with your own speculations and predictions, but in my opinion it's more inclined to ATH.

I don't think that it will happen in the future, there is no way for cryptocurrency to replace banks, government is against cryptocurrency, they wouldn't accept any decentralized system, but if though cryptocurrency will never replace fiat, I still don't care because I can still explore crypto world even though it is not yet accepted in our country and besides there is no way for them to ban cryptocurrency.

It looks like you repeat the same mistakes, even though you make a lot of trading still there's a problem with your strategy for sure there some even small mistakes that might bring you to your losses for those years I guess I learned something but imagine two years I guess there's something wrong on it. Better to try to analyze those mistake try open a different opportunities or strategy to make a trade not always stick to the old one, every time there's new changes why not take to adopt.

Risk management is not easy but if we can do that, we can prevent anything that can happen to us because we will have other ways to avoid that. Technical and fundamental analysis can help us know where the market will move and even if we can not know exactly where the market will move, at least we can prepare.

Well I think we still have a long ways to go before you should consider yourself wrong in that area.  That being said I do not believe that cryptocurrency will replace fiat currency anytime soon.  I think that it will continue to work in conjunction with cryptocurrency and eventually yes, devalue fiat a bit, but I simply don't see it taking over ..maybe ever, unfortunately.

The issue is that unlike traditional markets a great deal of the people trading the markets of cryptocurrencies are people that have no formal training as traders and do not took the time to learn more about the topic, this means that whatever information that comes out that is slightly negative affects them greatly, then the whales take advantage of this and exaggerate the news and FUD is created out of nowhere, and personally I do not see this changing any time soon.