Im an 18yr old with 14G-H sized breasts and I desperately need Breast Reduction Surgery

I am 18 years old and I have 14G-H sized breasts which have been a constant problem from the age of 15. They are way too large for my body and I have excruciating back pains that have made it very difficult to pursue my dance career. Because of the weight of my breasts I have immense amount of back pain and gained horrible stretch marks. The size of my boobs don't match my body as I normally wear size medium clothes, which is why my breasts are so straining on my body. My doctors have said I need to exercise first, to lose weight and see if that creates any change, but when I exercise its so painful on my breasts, but they also press on my lungs stopping me from breathing properly, also creating rib pain. I am a pretty active person and find it frustrating that I cannot exercise like I want to. With this vicious circle it means I'm constantly having trouble sleeping too!

I have been to see many GP's regarding this and I have been brushed off, not listened to and treated like a child who doesn't know what she's talking about. If this carries on for too long It could get worse and I could develop an uneven spin and have to have major spinal surgery which will cost ridiculous amounts of unnecessary money. I find it very hard to concentrate due to the pain that I endure each day which means I'm putting very little energy into my Uni work which unfortunately effects my grades. The frustration I feel is unbearable I cannot wait for the day where I can just simply wear something I want to wear comfortably, without being sexualised and judged for it.