tips for unmasking?

hello! im going to be diagnosed soon, i havent seen my clinical psych yet but ive known for a long while that i am autistic
my only issue is i cant remember the last time i unmasked
i have this incessant and suffocating need to be myself but i live in a home with people who do not understand mental health or neurodivergence AT ALL. so at a young age i learnt to mask and i havent been able to undo it (i also have a suffocating need to be liked by others and bullying bc i was “different” just made the masking more prominent)

i dont know how to, i want to be able to breathe and be myself for once.
any advice?
thank you ^^! 🐛