In the cryptocurrency circle, the best strategy is to hold onto your coins and not let go, treating futures as if they were spot trading, with a 5% position being enough to hold. If that's not enough, add some USD, sometimes go long, sometimes go short. In the end, you'll find that if you're right, it equals profit minus transaction fees; if you're wrong, it equals loss plus transaction fees, purely a major source of resentment... At least make a profit of over 20% on your principal in one transaction, then switch directions or make adjustments to close the position. This way, the transaction fees can be negligible.