Commit ''suicide'' to your past (psychological) - both the
''good and the ''bad'' and before you know it u are free to partake
of what comes or not comes.
Otherwise, u may do things or find another but what is
unresolved within will surface.
It is not difficult but it appears so cos one's sense of self as
long as it is identified with that feeling (whatever the ) becomes
a part of self. Hence, the misery , the pain.
Understand, acknowledge and if u can n are willing to die to the
''psychological'' past, ie, now manifesting as a hangover, it will
not go away.