Speaking as someone who did the earlier half of their transition in Texas - I would recommend starting the process wholeheartedly if you can. You can hide many of the effects of transition well at least for the first 3-6 months in most cases (with the exception probably being voice changes if you are transmasc). I successfully hid taking estrogen from my unsupportive parents for 3 months, and could've gone longer if I hadn't come out to them intentionally.
If you have one local to you, Planned Parenthood is a good place to start as far as hormone providers go. My experiences weren't the best (mostly due to dosing issues), but many people swear by them. You might need to self-advocate for certain things, such as dosage increases or starting progesterone if you are transfemme and want to take that in the future. The positive mental effects of being on HRT cannot be understated.
Good luck!
Gear Lever: https://flathub.org/apps/it.mijorus.gearlever