I have all of these coins:
ETH 40%
CARDANO 20%
POKALDOT 20%
TERRA LUNA 5%
THETA 15%
Avax: 10%
Are my coins going to last is it likely?
I think ETH, CARDANO, POLKADOT will survive more than 5 years. But I am not sure about rest of your coins. You have to research well before holding those coins. For long term holding, I think Bitcoin and Top Altcoin are the best choice.