How do i get over someone who cheated on me?

at the age of 14, i left hm with dis guy, we share a history together, i love him but he cheated on me, its nt the first time. wen i first realise he did it, to get bk at him i cheated on him. now when we both agreed to make things right he had someone living with him, when we were together. i've run away wit him b4 n he is sendin me bk 2 schol right nw. payin for my cles. im lookin 4 a job but none is corresponding wit my cl time. i don't knw wat 2 do because i want to let him go and yet i can't cause he is paying 4 my cl...