I am in the end how to do

Taught several times not to do , I hit his son was crying, I was in tears . Feel sad. To him, despite the opposition , and a family who does not love life so many years , the period also thought about leaving , you can still repeat the mistakes again . He 's making progress, lazy and just made ​​me feel good hate , really want to walk away , but no matter which one I take is hard to let go of another one ! I hope my heart can be hard , I can not. But if such a day and then go on , I will collapse ! Do not want to work hard and want a windfall , lost to borrow money to go live . This man is also worth giving up my self and to his son with him life? It is also worth I sacrifice myself? I am in the end how to do ? Cry what is the use ?