How do I come out to my family?(trans guy asking)

Hello everyone.

My name is Felix, I'm a teenager trans guy who has difficulties coming out to his family.  I think I knew who I was from a very young age, I just couldn't put it into words. I remember how excited I got when I told people I could scream like a boy, or when I wore my brother's old swimming trunks to the pool. I've always felt a little bit out of place when talking to my female classmates because I couldn't relate to a lot of their interests. When I was 9 years old I got a pixie cut, then with 10 a really short haircut with an undercut. Thanks to the internet I found out I wasn't alone with my feelings and experiences and I started to identify as a boy when I was 11 years old. I told my parents and at first nothing happened. I told them again and we went to the local centre for queer people, where we were told it would be good for me to get therapy. I was still being deadnamed by this point. My parents told me they would start looking for therapists, half a month later we had a meeting with a psychologist who gave us a list of therapists to look into. It took me a year to finally get to a therapist, I had one session with her and my parents decided they didn't like her. They stopped looking after that. I let my hair grow out, mainly because I was too lazy to cut it and stayed quiet over my identity. In 2023 I asked to cut my hair short again and my mum refused. Last year I asked again, she refused again and blamed it on my queer friends. I still managed to get it cut short and have been feeling a lot less dysphoric since. 

Sorry for this long story, I will get to the actual point now.

I'm scared to come out. As I've said, I've already come out 5 years ago and nothing really happened. I'm scared my feelings will be rejected again because it's "just a phase" I'm scared I'll be stuck in the same situation I was in 4 years ago where my parents and I were fighting constantly and my mental health was at its lowest. I'm scared of dissapointing my relatives, especially my maternal ones. I'm the only female born person after my aunt, who is now in her 40s. My grandma and my aunt are really proud of the fact that I'm 'a girl' and especially my grandma loves showering me with girly things.

I feel really helpless and don't know what to do.

Thank you if you read this far.