So many unknowns

Well, lately I have been having the worst mood swings of my life.  I can't seem to stabilize myself even with the help of meds (Prozac). Its hard to do the simplest things. At some times, I feel detached and numb from the people in my life.  Other times, I am crying over the stupidest things and getting so mad at everyone. I literally cried this morning because my DH didn't want to walk up to 711 to get me a pop tart. STUPID!!  Add to that the fact that I am starting school tomorrow and I am scared out of my mind.  The school I am attending is small and disorganized and I have already had an altercation with an advisor there. This is not usual for me at all, I am usually the type to smile and nod. I hate starting out on a bad foot.  Then, there comes the financial situation. My DH is working 12 hour nights 4-5 days per week so whether he works or not, he sleeps all day. This has caused many, many fights and my attitude is not helping things. We need to have $4000 saved by Sept 10 for the upcoming vas reversal.  I cannot seem to quit smoking. I will start the day out with good intentions, but they don't last long.  I know I need to stop ASAP but its really hard! I would hate if this disgusting habit prevents me from getting prego. I am already panicking about starting TTC. I read in the infertility forum of these women, and I don't know if I can be that strong. I am scared silly to be the problem in our fertility issues.  "No one can give me any answers because "everyone is different" but here are my rhetorical (sp?) questionsWill I do well in school and prove to everyone that I can do it?Will DH reversal be a success?Will I get prego this year? Who knows.......