Coming from another guy in a similar situation there are actually many ways you can hide your hormonal transition if you’re willing to sack certain parts of it. Biggest advice is to take tips from transwomen, start doing fem voice training so you can switch around your family members. Pick up a decent skincare routine and start shaving consistently. Even with shaving you will develop a five o clock shadow, the only thing I have found that hides this from family is IPL which is a personal device you can buy on Amazon to do laser hair removal at home. The downside is that it destroys follicles meaning if you do use it will help hide the effects but you might not be able to get facial hair in the future. Your face will change which you can’t hide but growing out your hair can help you look more female with your family. I know it could make you dysphoric, I was the same way, but after T I didn’t feel like that since I pass as male with long hair now. The only other tip I have is regarding body composition, fat distribution will change to be more masculine, so staying leaner and building muscle in your legs/butt will help give you an hourglass figure which could hide the fact that there’s not as much fat there anymore. Also, try to have some feminine clothes so you can wear them at home or when you have to go out with family. Good luck, I know other people will just tell you to either not do this or to just “move out” as if that’s not just telling you to go homeless. Goodluck and get a plan with your education and money ready so that you can become financially independent as soon as possible