diy hrt

hi, i’m a 14 (soon to be 15, less than a month!!) year old trans guy who is looking to diy hrt… but i dont have my own bank account and if i get one my mom who is not supportive of any medical transitioning will likely watch the things i buy like a hawk. money isn’t a problem, as long as it’s cash. what do i do? any suggestions other than T, like blockers? idk if it’s too late for me tho