Bari Jo, I don't know what to say but I want to say something supportive ... umm .. SUSPENDERS!
No, I'm not making light. Seriously, please just think about the things that you can do, not what you can't. I assume you enjoy most of your family. Just talk to them
AS Bari Jo, don't worry about looks. Looks are not everything. I've known (know) plenty of cis girls that when relaxed in a friends & family gathering don't look girly at all.
Feel Bari Jo on the inside, it'll show up on the outside.
(Yes, I tell myself this too, WIP

)
You mentioned your nails. Don't look at them and wish they were done up, look at them and plan out how you want them when you get home. Build anticipation towards doing it rather than despair (right word?, hmm, ...) at what you don't.
Ok, more coffee now. I'm more insensible after coffee .. umm, yeah .. I think.