I really need help with my situation!?

I am a 14 year old boy and I am really passionate about climbing ,well too passionate which leads to my problem. I ended up now being a good climber for my age. Now its summer and I train everyday at 8 in the morning until 12 and then 5 in the afternoon until 8:30 in my indoor climbing gym and in the weekends I go climbing on rocks outside near my town. I am really serious about this and I really want to become really really good until I end up an adult but many people don't understand this such as my parents, friends... I get their point that I am a bit obsessive on this but I KNOW I will become the best if I train and this is one of my achievements which I want at the moment in life. But today I had an argument with my mother, telling me I go too much and I dedicate too much time but for some reason I feel embarrassed to tell her I want to become a climber in life... I know there is not too much money in this area but I know I would get the money if I would be the best and I would have a great life. Again I understand why she is arguing because as a child I was always good at school and I mostly got good grades and had many other activities such as playing piano for 7 years, scuba diving but I don't treat climbing as a "hobby", I treat it as a big part of my life and one of the things which make me feel really good. As I say again, I want to train as much as I train, each day I finished my training session I feel so healthy and strong, and I am taking this sport really serious which my parents are against it.