Never take financial advice from random people on the internet
OK, now about crypto investing (some prefer the word speculation, I don't care).
I am not going to tell you what you should do, I am going to tell you what I do, merely for entertainment purposes, not as investment advice.
My approach to cryptocurrencies is similar to seed investing in startups. I create portfolio of 10 - 20 cryptos, and I expect most of them to fail. But hopefully one or two will become the next big thing, and make it all worthwhile. Also I am investing only money I am 100% ready to lose, in fact I regard all my money in cryptos as lost already. Any better outcome is just pleasant surprise.