Bra fitting

I was at the mall chilling and shit right so me and my friend decided to go to Victoria secret and get fitted as I thought that I was a 36D come to find out I'm actually a 34DDD 😑 I seriously wish I had smaller boobs man this back pain is not fun and I'm only 15 at that. so I'm pretty pissed because when I thought I was a 36D I couldn't find any freaking bras now that I'm a 34 TRIPLE FREAKING D I think it's going to be impossible to find bras that are not so expensive