
you could still be nonbinary and also want boobs. that joy is a feeling worth pursuing. there's a group creating these things called knitted knockers for people with breast cancer - if you can't get breast forms and want a step up from socks or padding you could try making those. and it sounds like estrogen/progesterone might be worth considering, but that can be a down the line kind of thing if you want to take it slow.
planned parenthood, if they do gender affirming care in your state virtually or in person, has a good sliding scale for payment so you can go without insurance. they're well aquainted with that. my friend used folx, an online service, and you could use plume too. my primary care doctor can prescribe hrt, although unfortunately if you fill the prescription at a pharmacy they may run it through insurance. not sure if, even if you buy it without insurance, that shows up to your parents.