my experience is very different from yours, but what I do know is leaving is like removing a band aid whether you go slow or fast its still painful. once you realize how wrong it is your course is set and somewhere along the line you will have to leave because the pain of staying will increase like a dull ache to excruciating and some people will get hurt but thats their decision & their crisis.
your not alone, many here have done it and survived and gone on to the "real life".
you never know your decisions could be a cataysis to others for the good.
interesting line in the prophet by gibran "ready am I to go & my eagerness with full sails awaits the wind only another breath will I breathe in this still air only another loving look cast backward"