I’m a cis guy dating a MtF trans girl for my first relationship…

I would normally never post on Reddit for advice in my real life but I don’t really have anyone else in my life to go to about stuff like this who could actually give helpful advice besides her and well I don’t think trying to “talk it out” is always the best idea considering I’m autistic and she’s avoidant so I can tend to make things worse by being too blunt or unemotional when I speak. I love my partner so so much, but this is my first real relationship and she has a lot of trauma she is still healing from related to her past relationship and friction with her family. Without revealing too much even tho this is a throwaway; I’m 21 and she just turned 20 last month, we’ve been dating for like 6 months but we had a falling out for about a month and that’s too much to explain rn lol. Her family has zero contact with her and she moved to about 30 miles away from where I live 8 or 9 months ago so she doesn’t have many friends or connections out here besides me. She recently started injecting hormones herself because she has no insurance and can’t afford to do it through a doctor. I’m not educated enough nor is it my place as she is an adult to tell her not to do it, but I’ve voiced my concerns about it for sure. The only reason I add this detail is because I don’t know if her levels are imbalanced and she even expressed to me recently she may have “messed up her levels by doing too much”. How can I be more mindful and make her more comfortable during these periods of instability? We’re poor and young, we both don’t have health insurance and can’t afford shit like a therapist even tho we could prob both use one LOL and like I said it’s not my place to press her about doctors or endocrinologists because she’s stressed enough with no support from her family. So I try to fuck off and give her space, but we’re already a decent distance apart and I’m a very non-avoidant hypersocial person so I feel like shit when we don’t talk for more than like a day lol. I know that’s a me problem but I don’t think it’s that unusual as a young person in their first relationship. Besides just getting better at silence and giving space to breathe (which is something I’m slowly getting better at as I age), how can I be a better partner for her? How can I express my love without overwhelming her and being too much? Are there books or literature I can read on being a supportive partner to a trans person? I need to be strong and supportive for her and right now I’m ignorant and lost….