hair removal tips

so I have like really dark thick hair (on my head lol) and that makes me have really dark thick hair everywhere else and I shave my legs, armpits & bikini line, but I have dark hair on my lower back & butt and it makes me super insecure & I don’t want to spend money monthly on getting it waxed bc I don’t have a lot of money & it’s hard to shave back there. any tips on what I can do to minimize the hairyness?? ☹️