How to get rid of chest/back hair for good?

im a 13 year old boy and i wanted to ask people how do i get rid of chest/back hari for god?i would really like to enjoy taing my shirt off at the beach but i cant because my hair is embarring.I have had to deal with it for already 2 years and dealing with razor cuts and i am sick and tired of it,so plee people of america help me out on different affordable hair removal treatments i would really aprrciate it.