Suggest Treatment For Erection Problems

I am 17 and I have been masturbating quite frequently since there is nothing to do. For the past week I have had the problem of suddenly losing my erection when masturbating and having trouble regaining it. Also, sometimes it is weak and soft. Is this becuase of my excessive masturbation? After I get it back up It is pretty much normal. Please help, this could be a very embarrassing problem in the future.