don't invest all money for one or two cryptocurrency, It is risky. Just hold some coin in top 5 coinmarketcap, it like ethereum, binance, cardano ...
I suggest to focus more in bitcoin and ethereum as they can give you potential profits that most of the coins are lacking. There are a lot of shitcoins around but do not be confused by them because they will all turned out into dead coins as years may come. But with bitcoin, i can give you an assurance that you will not lose most of the time but will gain good earnings especially if you hold them when the market isn't doing good.