You could, you know, try selling some when it looks like price is about to take a dive. That tends to give plenty of powder to buy.
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I know, I know, not an option. "Hodl for life" and so on

Successful short term traders are rare. Not because it were extremely sophisticated, but it is an enormous psychic strain. You have to be born for this work.
I can trade with small amounts in short term, but to start trading just with a medium amount and I feel that I will die very young.
I estimate 95% would not be able to trade short term without becoming a mind wrack over time.
I know that there are people who can. If you are one of these, I congratulate.
I personally have a lot more trouble with the mid term calls than with the short term predictions. Identifying a likely developing trend, and selling or buying into it seems relatively easy for me. But the question how to take your profits, in USD or BTC, *that's* the tricky bit, imo. Park them in BTC, and you'll see your profits melt away. Park them in USD, and one swing you missed later, and you only buy 2/3 of your original coins back.