It's totally normal, and might be unavoidable. It seems like you're uploading your art not just to show your creative output, but to feel validation. You want to know that your art is good and well-liked, and that people enjoy that art just as much as they enjoy any other art online.
You could try to do something like only post your art to a website that you use as a portfolio where the numbers dont exist and you're not really competing with others on the same platform for visibility. That may not work if it's truly about validation, as you couldn't just put that away without needing to transplant the validation somewhere else in your life.
Your best option might be to try and more thoroughly engage with whatever community you already have in an effort to make the engagement that you already have feel enough. Maybe something like drawing requests of dumb ideas people have, just for fun, to get them commenting and have you draw something that's just for the viewers and not for a higher level of art and engagement.