Hey Evan! [sending lots of hugs your way] My birth name is also a female one but I'd rather go as Duarte. I'm 5 months 'till I cut my hair short, but I doubt my mother will let me do it. She's showing a lot of resistance in accepting and understanding how I feel. Even though I truly understand you and how you're struggling with these feelings that many trans people get (you're not alone) and how hard things can get, but I'd say to you to hold on, don't run away, even though you feel like doing it, don't do it. Something bad may happen to you and I don't want that. Just hold a bit longer, there's the chance that your mother may turn her thoughts around and start to accept you. Does your mother got some information about trans people? If no, then she might be scared and confused about it. Give some information to her, I made a document on microsoft word with all the information I have about being transgender and gave it to my mother. She didn't read it yet but I'm still hopeful. The feeling I get is that she's not taking this seriously, ... she's not even accepting it. I already got a lot of bad feelings just like yours because she's not letting me be myself in some cases. Anger is one of those bad feelings. But I will hold on, I'm still hopeful she'll turn around. I'm slowly explaining to her how things work when it comes to trans people, even though she seems unaccepting at the moment. My adivce is to not run away, even though things are hard as hell, don't do it. You can come to this support group whenver you want and leave a post, we'll be here for you. You are not alone.

Well, about this question 'can I start some type of puberty blocker, or is it too late to make a change?' my answer is no, it's not too late, you are still in puberty, you're not fully developed yet. Even though if you were no longer a teenager, testosterone changes your body A LOT.

'if a gender therapist *diagnosed* me with very serious dysphoria, and suggested I got on hormones soon, could my parents flat out refuse, or would i be allowed to start T legally, without their permission?' my answer to this one is you can't get hormones without your parents permission when you're under 18 years old.

I would highly recommend you to watch these videos, they will be very helpful for you:

https://www.youtube.com/watch?v=EbIGWUeKGFs
https://www.youtube.com/watch?v=yk05XYxaPO4

And I would highly recommend you to follow these amazing people that have helped me so much going through all these situations:

Jamie Raines https://www.youtube.com/channel/UCHSIA2JRC5PWvUX4Sl8OrcA

Sam Collins https://www.youtube.com/channel/UCySTKqYThqBbKdEtzOjFhgg

Kovu Kingsrod https://www.youtube.com/channel/UCYkXsiSerUoIqayxAgrcowQ/featured

Autumn Asphodel (Elle Stone, this beautiful woman has been through mental and physical violence like bullying at school and even at home, she has also been through abandonment among other things, all of this because she was different from the rest of the people) https://www.youtube.com/channel/UC059kFc5oApruDS2QFmZfeA

Aydian Dowling https://www.youtube.com/channel/UCe5IabAzRyXqLpAib13Q2yw

Tyler Turner https://www.youtube.com/user/partar400/featured

Jett Taylor https://www.youtube.com/channel/UCg-xQ0G82QaFEleKprl04rw

and Alex Bertie https://www.youtube.com/channel/UCXX0iCrVQnlNvGW4gKEhHdA

As you see, you're not alone. You'll always have us and those youtubers that try to make our lives a bit better. Stay strong and hold on, things are gonna get better.

so firstly, you will have to wait till you are 18 for the surgeries either way. you wont find a doctor who will do the surgeries earlier than that because it can be extraordinarily dangerous. So in the mean time you said you want to live alone as you are supposed to... sink your efforts and frustrations into your school work. plan for the future and college and busting your butt to do the best you can to land into a good career. That way you can get on your own and have the financial backing to actually do this.
A therapist nor doctor can force a parent to authorize hormones and again you wont get testosterone until you are 18, they may give you anti androgens to suppress puberty, but they generally wont do the cross hormone therapy until later. The fact is your parents absolutely can refuse to let you have them and there is little that a medical professional can do other than recommend it.
As to it being to late.... there is no such thing. I started transition at 32 years old for mtf. i have some ftm friends who started when they were in their 40s. Keep in mind that in all cases we never went on any form of puberty suppression early on because it didnt exist. Yes it helps in that certain aspects can be kept from happening, such as hip widening, and breast growth and so on, but it also has significant risks such as ovarian cancer, uterine cancer and so on. in the end you will essentially go through the same steps at any age and you'd likely have to have breast reduction/mastectomy and all anyway. So in the end you wont loose anything waiting except a bit of hip growth which if you are already having periods has already happened anyway.

As i said, put all this effort into school, get yourself into a position where you can get a good paying job with decent benefits and you will be set for anything. you can do whatever you want then and no one can stop you. If you did something like say ran away, you are setting yourself up for a VERY difficult time financially. I know it sucks really bad to have to deal with it... I did it for 32 years. But learn to love who you are and focus on the future. You have a Huge amount of time ahead of you to do this, so do what you can now and what you cant, plan for it later. Thats my advice. hope its of some help.

Parents can flat out deny you blockers and such until you are 18, and surgeries you will have to wait till 18. Also if your parents do allow you before 18, you can start things like HRT before 18, but not surgeries... Sorry that’s all I got.