For me, it's not that I lost big amount, it's that I can't get the profit that I wanted and it's taking so much of my time, and so yes, it's really fatiguing and not getting the results that you envisioned. So I just quit while I'm not in the a big negative losses.
Trading requires time spent for it and it can affects your time budget for other things like being active physically. Trading is not for everyone to get profit and most traders get loss, not profit. Your decision to quit trading when you feel it is not fitted for you and you can not do well trades to get profit as there are other ways to increase your capital, gain profit by investment into good assets and Bitcoin gives you chance to invest in it, get richer with it. You only need to secure your wallet, bitcoin safely and hold it to wait profit comes passively.
And then I became a proponent of trading is not for everyone. Specially if you are not a person that doesn't like risk, you might end up making the wrong decision or simply might regret not taking this and that trade.
Trading or investment, there is always risk and you have to accept risk, take it in either trading or investment. It's just risk with Bitcoin investment is a lot smaller than risk of trading Bitcoin.
So it's not that easy as it sounds like, nothing against those who are very successful and making a lot of money in trading, then good for them. But again, it could not fit everyone as we have different mindset in terms of risk and we all know that trading is like gambling or at least they have similarities.
If they don't have good risk management and capital management, trading is simply not for them but to succeed with trading, they need more than that. Other requirements like knowledge about fundamentals, technical indicators for trading, good discipline to do well in both risk and capital management, and enough experience in the market. Maybe more and if a trader lack of many of these things, it's more like gambling, like you said, than trading.