Summer Vacation Ending

This Wednesday would have been my 13 year starting school. I am having a very difficult time dealing with this. On top of it, I have to have a laperoscopy on Sept. 10th.  The doctor is going to see if I need a full or partial hysterectomy or removial of my fibroids and ovarian cysts.  I having been working with a wonderful therapist who is trying to help me overcome my PTSD.  I made the mistake of talking with my grandparents who were my guardians for awhile.  They told me that if I continue to take the Prozac that I am on I will kill someone.  I shouldn't listen to them. I have avoided them the whole summer.  My husband is treating me like crap again.  I hate this.  We haven't slept in the same room for a long time.  It feels like we are really bad roommates.  The prozac is supposed to be helping with my major depression however, today and yesterday I feel like crap.  Yesterday, I couldn't even move.  It doesn't help with the fibromyalgia.  How do you make this pain of physical and emotional go away.  I stay upstairs so I don't bite everyone's head off.  I go for pre op doctor's visit tomorrow.  I feel like I am trapped in a dead body and there is no way out.  How am I supposed to go back to work at the end of September when I still feel like this.