wanna start building a physique

currently in my ug now, and really wanna build a good, lean physique by the time i graduate. I want to hit the gym but the thing is i don't aave my drivers license yet to drive myself there. could do calisthenics at home too but working out at home doesnt give the same dedication and enthusiasm as going to the gym (have tried it several times, did not last long). have an ectomorphic body (im 48kg) and really struggle to gain muscle and dont feel like eating those extra calories aswell. cant ask my mom to make me 80g protein as well cuz of the whole stereotypical myths on protein that our parents have.