None of which suits me. I lost a lot of my bitcoin and cryptocurrency in the past and I won't repeat my stupid activities again.

All of my stupid losses come from greed. I lost it with my trades, gambling, and margin or leverage trades. The easiest way to increase your balance is buy bitcoin and hold it. Do you think bitcoin has topped up? If you think it can rise more and the top is far from now, why not buy and hold?

If you find some potential altcoins, why do you not buy and hold them? Bull market is easiest one to increase your balance. No need to gamble, use leverages.