I had an overbite, like you describe, where I didn't have much of a side profile. It affected my confidence and self esteem and I had issues with pain/clicking. I was referred to an orthodentist at 16 where I got braces on (again), they prepped by teeth for surgery so that they would be in alignment. This took a couple of years. At 19 I had my lower jaw broken and brought forward with metal plates and screws put in place. I didn't find the surgery too bad and returned to full contact rugby four and a half months after having the operation. My side profile is much better and I don't even think about it anymore. Mine was covered by the NHS but i'm not sure what the case is now with cutbacks etc. The best thing to do would be to speak to your dentist about a referral to be assessed.