Actually, Short-term trading is for those people who spend lots of their days in to learning the trading like the technical analysis , the fundamental analysis and as well the other thing to have learn in trading and then they became the professional trader.
But those come on the crypto trading just on the greed and thought it will make them quick rich those will must face the situation you explain in your post.
So I will always say that if you have the trading skill then go for the trade or investment otherwise take some knowelge and make investment bitcoin regular in DCA scheme.
Everything you listed, including technical analysis, is necessary for any trader, no matter what he is doing, day trading, or long-term trading (investing), because it is always important to determine the entry point and when to exit the transaction. Without certain knowledge, this is impossible to do, it cannot be said that for long-term transactions you need less knowledge and you can be successful, this can only work if you bought bitcoin and held it for many years, but as practice shows, there are very few such people, most try to trade and suffer losses.