How much potential has my niche?

@bumpybanana with Insta Ads i get around 70 visitors daily.. I just dont know if the people just think that the product is cool or if they would also buy

Have you tried Instagram shoutouts? I have seen a lot of shoutouts in Anime niche. Could be cheaper and you may get more traffic than from ads.
If you are sourcing from Aliexpress, check how many orders have those products. If there aren't any, then products might not be good. Or they are just new and need a specific audience.

With the right touch, there is definitely money to be made in that niche..get your products in front of the right people. But in this day and age, your website really has to look it in order to sell. You won't get away with " I think it looks nice enough". Excellent product descriptions, perfect ad copy, marketing etc..

nice post so far but still having a minor challenge with someone like me with little coding skills and website management.. adding different payment processor and then getting hacked someday ..