What Causes An Indentation On The Bridge Of The Nose?

Hi doctor, A few years ago, I got into a very bad sports injury where I got hit in the nose by a cricket bat with full force. My nose was bleeding from the bridge and it was the most painful thing that has ever happened to me. I was very young then (I also was in a different country. Specifically a third world country). Obviously I couldn t get the right treatment and the doctors there told me I had to have a surgery to fix my nose if it wasn t straight. My parents and I, came back to England and we were going to go to a doctor here but somehow they forgot over the time. When I touch the bridge of my nose, I can feel it is broken (there is like a small hole that I can feel in the bone) and I also have a crook/dent in my nose. Other problems are that sometimes my nose feels weird and kind of heavy (I don t know how to describe it, as it is a very unusual feeling) and I can only breath through one nostril at a time. I have been to the GP, however the doctor didn t understand my problem and told me it was just a cold?? I was furious because he didn t understand my problem and didn t give me a chance to speak hence why I couldn t tell him that my nose is broken and I can t breath properly. By the way I am 17 years old. I hope you can help me answering on what step to take next. Thank you!