What is a quote to use when life is going against you? <3?

There's this boy i like but he has had a bad past with family abuse and drugs he is working as hard as he can to stop and i want to help him he wants my help as well its just that my family docent want me getting involved with someone from a past like his. so what is a quote that would sum it all up or even just a saying...? and what could i say to my mom that would persuade her to let me help him out?