How do you guys shave without getting a darker vagina?

Like my vagina is very pretty and ik that but i still like to be hairless and I would like to get Brazilian waxes but they’re too expensive for me rn. Anyways, i hate shaving but i guess it’s the only option because i am not plucking and i cannot use nair. Everytime i shave it gets darker down there and i always get nasty bumps and my skin is not smooth. How can i get it to look smooth and hairless down there without it getting darker each time? I want it to almost look like a Brazilian wax.