Your first paragraph kinda described me when I was finding ways to earn through Bitcoin since I was like open to one more sideline to earn from. Turns out it was not worth it in my end. I haven't really done DCA method for now since I am kinda buying at random timings/intervals.  Hodling might be called "cheap" method by other people since it is kinda being passive from everything happening in the market, but hey it's your money anyway.

Trading is just not meant for everybody including me. I had experienced the worst mental exhaustion ever back in the days when I attempted day trading. You're right that you cannot learn it by two months and heck, a year won't even be enough for an experience. It's just really not something that everyone can give patience into.

Not sure why people would quit their job for Bitcoin. It's possible, but kinda not practical and reasonable since you're kinda having an unstable ways to earn and you might end up not earning for couple of years depending on the market's condition. I can even recall the bearish days when Bitcoin was below 6k from 10k. Damn.

Suggestion/s? It's perfectly fine if trading isn't working in your end. Choose where you're most comfortable at. Trading, investing, mining or wherever you want go for it. Don't let people just tell you and force you in their ways.