Everyone of us here in this world has to encounter hardships, problems, good and bad experiences, meet people, hate people, leave people, etc... For me, Man, you have gone too much already. Choose your decisions wisely, choose the best decision so you would not have problems in the future. If you feel that leaving all behind is the greatest thing to do then do it, Change for the better.
But don't ever forget where you came from. Family is everything, there's always a home to go home to, good times or bad times.