I can’t bring myself to buy and wear the clothes I truly want to wear

Every time I walk into the thrift store every time I see something I want no matter how good of a deal you could pay me to get what I want and I still couldn’t it’s starting to be a problem because my “supportive” mom is getting annoyed that I’m asking to go to stores and walking out of the stores empty handed cus I was too nervous to even look and it’s also just annoying because I really wanna shop care free but I can’t I can’t just say fuck it as much as I want to I can’t bring myself to do it