Going short at high prices and going long at low prices — many people think this is a skill, but in the crypto space, it's simply gambling against the odds. You'll eventually get burned, no exceptions.

If you're still losing money, don't bother studying overly complex stuff first. Just remember this straightforward advice: for altcoins, try to stick to spot trading; for futures, only trade mainstream coins. If your direction is wrong, technicals are basically meaningless.