Come on, don't worry about it.
Maybe you need a hypnosis track that removes the fear of buying things. I've bought plenty of stuff, nail polish, panties, pantyhose, and so forth. Goes fine, and if they would ask, you can say 1) that is not your business 2) I like to experiment 3) it's for me, do you think the color matches my skin or 4) why do you ask, do you want to embarrass me?
Only the high heels I once bought I bought via internet.
