Created my first NFTs, could use some advice

Made my first NFTs at https://opensea.io/collection/vanidas-nfts.
Wondering if I’m likely to make any profit just making such random NFTs (I’m thinking, probably unlikely). Anybody know where I might find a guide on how to actually make any profit? Found lots of “how to create” and “how to sell” guides, but I really haven’t found any information on how to actually profit. Anybody willing to share their experiences and/or advice with NFTs?