Jazmine
You can shop at any store you want...Unfortunately as to wether they are Trans friendly or not will very much be hit and miss. I would however suggest that most stores you go to, will be more interested in wether you are actually spending money and not wether you are trans or not. Most of the big department stores have a Policy...Target seems to be quite outspoken about its policy which is very Trans friendly.
Hold you head up smile and go buy what you want...no one will remember you and neither will they care. 😀