The best trading strategy is to use leverage conservatively and ONLY trade when the market is moving so no trading when the market drifts. Reason for this is drifting markets will kill you with sideways, spreads, and/or leverage financing fees.

It's kind of like poker you wouldn't play every hand you get, you fold a lot (admitting your losses and closing before they get too big). Each market you trade is like a different poker table, you're not gonna play all hands on all tables or you're gonna lose, you want to play hands that will have the highest probability of winning, aka only play the highest probability setups/patterns that form in the market.

Trading crypto is almost the same as trading any other penny stock in particular contrarian strategies work well to short against exuberant buying and buy against capitulated selling.