Doesn't need long complicated answers - just a simple question:
Do you invest
1. mainly on price/the market trends
2. mainly on the underlying usefulness of the token/NFT
3. pretty even split of the two.
In my case, my way of investing is to split them into those two categories you've mentioned. Actually they're connected that is why I use them both as a basis if it is good or bad to invest to a particular coin/token. As of now, I also had chosen to invest on those NFT projects, especially those NFT games that are currently booming like Axie Infinity and Plants vs Undead.
Currently looking for more potential NFT games, you might want to mention some guys, thanks

I suggest you not focus on NFT projects. I know it was your choice but it was risky to put an egg in a single basket but rather to spread your investment into more potential coins like Bitcoin, ETH, and BNB for the long term. NFT's projects are in their prime, many had made a lot of money but worried about how its sustainability. And besides, only NFT games had made the great pump while many of them just are dead now. You should think it again.
very risky if we only put in one basket, because of belief without any logical thinking. I think the best investment is in major coins where eth and bnb are the main choices that will not die. and we can choose new projects like the trending NFT to invest, but I think using a small part of the capital we have, so we will still exist in the crypto world