dwelling in the past

i've been told that i dwell in the past and i have been doing an awful lot of thinking on the matter and i dont think that it is so much that i dwell on the past as the past dwells in me.i focus on my future and i work hard to accomplish what i want out of life.but my memories, issues and pain do always seem to kick my ass and everytime things fall into place i somehow seem to mess it all up.i've been succesful so many times and fucked it off time and time again. anyways blah blah blah