Handling it all by yourself may be hard, so make it an effort to lean on and join the current trusted people in your life for support; cherish the present relationships you have. You may leave room for further changes if the friends sometimes later decided to mend the bridge; forgive yourself and others. Move on knowing you did what was best.
If you need to cut ties with a friend than there is no reason to care for them, they put you in a position to have to cut them off which means they were never a real friend to begin with.