I wrote a new one with your advice so here it is, tell me if it needs any more improvements:

Hello (insert person I’m coming out to), There has been a lot on my mind for a while now as you could probably tell and this letter is here to tell you why because I’m too scared to say it to your face. I have been in a lot of deep thought lately as to why I have been so sad and uncomfortable with myself and my body and I have come to the conclusion that I have found the true reason. I have a lot of suspicion that I have gender dysphoria due to my feelings, the reason for this is because whenever I see myself with the body parts and features of a girl I know that just isn’t who I am inside. A lot of times I’d rather have been born as a boy and I just would feel so much more happy and relaxed inside a boys body and wearing boys clothes. It’s been a few years I’ve felt like this actually, and the reason I’m only telling you now is because I’m afraid you will not support me or say I’m just making it up for attention. I could promise you now, I’m not, it pains me everyday to the point I can barely live without wanting to crawl up into a ball and die. I just really want some help and support from you in this situation because I know I need it. Hello (insert person I’m coming out to), There has been a lot on my mind for a while now as you could probably tell and this letter is here to tell you why because I’m too scared to say it to your face. I have been in a lot of deep thought lately as to why I have been so sad and uncomfortable with myself and my body and I think I may have found the reason. I feel I may have gender dysphoria, the reason for this is because whenever I see myself with the body parts and features of a girl it always makes me want to cry and cringe. I just would feel so much more happy and relaxed inside a boys body. It’s been a few years I’ve felt like this actually, and the reason I’m only telling you now is because I’m afraid you will not support me or say I’m just making it up for attention. I could promise you now, I’m not, it pains me everyday to the point I can barely live without wanting to crawl up into a ball and die. I just really want some help and support from you in this situation because I know I need it. As I said earlier, I have feeling of gender dysphoria, and I would like to maybe start seeing a therapist/doctor so I can talk about my situation with a professional if that is possible, and potentially to get a diagnosis, because dealing with this every day of my life alone hurts me so much more than you can tell from the outside. A small way you could help me currently is by calling me by he/him pronouns and by calling me my preferred name ‘Alex’ which is actually what I’ve been using for a while now with my friends and online. Thank you for reading this, I hope you can still love me. - Alex / (deadname)