Transgender help for a 14 year old (gay) guy?

You could be transgender but without talking to an experienced to a therapist that specializes in gender identity first you won't know. This is something you'll have to talk to your parents about and there are many resources out there that can help you do it. If your already sure that your gay you'll have to tell them about that sooner or later anyways might as well bring all of it up. If you have good reason to believe that one of your parents may react violently then don't do it and wait until your legal age.