You just read and that's why you say that long term trading is not profitable, making a profit of 2-3k per month is possible but it also depends on how much capital you bring and also depends on how much knowledge you have, I would even say that you can get a much bigger profit than that if you have more knowledge and the ideal amount of capital.
On the other hand, is there a strategy that can always produce the amount you mentioned? Yes there is, there are even some traders who can produce more than that every month, but I would say that every trader has their own favorite strategy, a strategy that is profitable for you does not mean it will be profitable for me, every strategy has its advantages and disadvantages and if you have a strategy that you really understand about its advantages and disadvantages then keep using that strategy and if you want to get a profit of 2-3k then I think you should have a capital of at least 50k, and that success still depends on how good your risk management is.
Capital, skills and the projects that you are getting involved with will determine how much you can profit from this activity. Also, acquiring those skills is not an overnight task as you can learn those as you go thru your trading journey. You can pick a thing or two while doing the trade as each coin is unique and has their own market performance.
Hmm.. Very long, when I start trading forex my balance was almost liquidated and seems I was just profiting and losing everything. I started crypto trading and also stop at some point but since this year I don't think I have existed so many trade in losses. I have recorded more profit in trading this year than previous year, the only problem is that I don't do it so often. If you want to be profitable, be consistent, don't trade to get rich instantly, handle it like a business that generates profit gradually and you can stand the chance to profit from it.
I believe, you already acquired some tricks not to lose much in this market. Also, time and resources are important if you want to sustain the profitability of this activity. Don't think that you will get rich quick on this. It would take time to acquire the positive aspect of this market. Just think of countless alts alone will give you the notion that there's more than meet the eyes in this market.