I don't think you should be discouraged over a lack of traction. I think the idea is/was really cool. I also think you should do things because you want to do them no matter what the results are. However, your disappointment is understandable. You could always pivot and take that experience as a dry run to do a similar idea. NFT markets are fickle until you build a following or have some great marketing. Maybe build it all first and then they will come.

I am one to not want to give up until the bitter end... but as i get older cutting my losses is a difficult lesson i am learning. Time i guess is the main factor. I really do think you were/are on to something with your idea. Maybe it will garner more traction and success in a different form. Perhaps just a refinement and a little bit of gear shifting is needed? Or you could be like me and grind it out to completion... even if nobody ever realizes the project is finished! hahaha