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?
that's right if you invest in Ethereum with a larger percentage than the others, because in my opinion Ethereum is the king of altcoin, so of course the price will definitely increase very high and you don't need to worry about investing in Ethereum for the long term, because until whenever Ethereum will definitely survive, so you can never lose investing in Ethereum and instead get a lot of profit from investing in Ethereum for the long term.
Yeah and even you miss some of your invested from your other assets, that can be recover if you will continue to hold your ETH investment and let it manifest when the bull season strongly approach the market, we don't know how high ETH can be once another bull run pump the market.
But with ETH inside your basket the chance of making money is possible, and in terms of your other coins, aside from Luna which small portion of your investment, the other coins may still have that good shot to make or bring you good profits.