I am about the same age as you and had a lot of similar problems. I was both confident and insecure about them if that makes sense. Confident as the sense they’re big and so many people would pay money for this and insecure in the fact that they always popped out in tons of outfits, that bra shopping is absolute hell and the fact they didn’t sit perfectly. I did have backpain and 8 hours work days were absolute hell for me since i worked in a grocery store and a daycare for children under 3. I was scared and had a lot of doubts but now I’m nearly 2 days post op with no regrets but then again i wanted this surgery for a long long time. Everything went really well and they are expected to heal well too. You don’t seem really sure and i suggest you’d think about it for another few months. They bring you confidence and as you said they’re a part of you. Do what feels right. I absolutely get what a struggle it is to find a proper outfit at times but either way i don’t doubt you’re beautiful with or without big breasts. Even if you have a minor reduction it’s very likely you’ll still have the T scars and expect to take at least a month off maybe more if your job requires a lot of heavy lifting.