When I was 17/ 18 I took up Judo as a sport casually at first and then really got to enjoy it and no one in my family were J.W.`s
The trouble is I converted when I was 19 and the general consensus then was that it was not a good thing to pursue .It is one of the little things I regret to this day giving up something I liked and enjoyed trying to please other people and a religion who would throw me on the scrap heap if I didn`t tow the line.
Do what you want to do in your life but be prepared for the consequences.Of course it all depends upon how old you are .If you are a minor you still need to obey and be subject to your parents .
O.K i just looked back and your only 13/14 yrs.old ,I`m sorry but you might just have to bide your time until you are old enough to go your own way.
I hope others can give you better advice
Take care