Salam - Struggling to Exercise as a Hijabi with a Large Chest, Anyone else?

Assalamu alaikum sisters ❤️ I wanted to ask if anyone else deals with this. I’m naturally quite slim and have been wanting to properly start working out and going to the gym for a long time. I genuinely want to feel strong, healthy, and more confident in my body. The problem is I have a very large chest, and when I exercise everything bounces around. Even with sports bras I still feel uncomfortable, exposed, and really self-conscious. I also get bad back pain just from standing or being active for a while, which knocks my motivation before I even begin. It makes me worry that no matter how much I train I’ll never reach the shape I hope for unless I have reduction surgery someday, and that thought really drains me. I know fitness isn’t only about appearance, but it’s hard when your body feels like an obstacle instead of something you can work with. Despite all that, I truly want to join the gym and be consistent. I just don’t know how to handle the physical discomfort and the mental side of it. Does anyone else here face this? How do you cope with workouts, finding supportive sportswear, gym nerves, or chronic back pain? What helped you stay consistent or feel more at ease? I’m feeling so insecure because of this 🥹 I’d really appreciate any tips, personal experiences, or dua. JazakAllah khair in advance.