Puberphonia patient s message from Australia.

I am suffering from puberphonia which I recently figure out this kind of case is puberphonia . not that much sounds like feminine but sometimes ,for an instance ( after running or doing exercise, after eating food, after drinking chilled drinks ) my voice pitch gets higher than normal which sounds like feminine . is there any solution that you can help me .
I am currently living in Brisbane (Australia) as a student. but I am from Nepal (permanent) I will visit your clinic as soon as possible, but till that day could you advise me how to build uo confidence sir,
(A message received from Australia.I have blocked the name, which look like an English man.I have advised him to come & take treatment).