My mom spent lots of time and money to make a cosplay for me to wear at a friend's party. My anxiety kicked in at the last minute so I didn't wear it. Now I feel terrible for wasting her time and money and I feel ridiculous for feeling terrible about such an irrelevant mistake and I feel terrible for not appreciating my mom. I also feel terrible because I found out my friend really wanted to see my cosplay and so I'm all like "I'm so stupid, I should have worn it." I can't sleep and I feel so sick. Every time I try to let it go, I just think of it some more. I have thought of two options: Sell the outfit or help save up $60 for Comic Con (in March) and wear it then. I just don't want to waste more of my parent's money on that. What do I do and what are some other possibilities?