There are other good altcoins there that are really worth holding for long term rather than those NFT tokens. Those tokens' price are only driven by hype since NFTs are the trend this year. Once those tokens loses their hype or the developers behind it abandoned their project, the token will slowly lose its value. Sell those token now while they still have a value and buy some crypto that is on the top 10 of coinmarketcap, hold it for a couple of months then you'll get some good amount of profit.