Hi, I think you need to talk with you mom regarding the HRT, she needs to know why do you needed, what kind of changes and the risks you will take, also what kind of protection will you have, and how other peoples deals with it, I think she will learn and the things will be better, she is scared of how is going to affect your life, but if you show her the information she might change her mind.
as Mrs Izzy told you Respect yourself and let other respect you too
Be happy, in this life the most important person is you, we need to learn that, been happy doesn't mean to be a prisoner.
Regards.