Broad diversification is key to success in investing.
Saving money in 2 coins or stocks can wipe half of your capital if one of the two goes south.
Put your dough in 5-10 coins, if one of them collapses you only lose 10-20% of your capital and can quick recover your losses. Read what professional investors do, they recommend investments spread over 10-20 ventures. Above 20 is difficult to keep track of. But 5 is a bare minimum, everyone can keep track of 5 coins and be insured against large unexpected hits.
Keeping track of 20 investments isn't hard. If you find it hard, then maybe a buy-and-forget strategy would be best for you. Altcoins are super risky. I wouldn't keep any significant amount of money in them. Or bitcoin either, really. Hopefully you don't have all ypur money in crypto.