Hello Michelle,
My advice is: go see the psych to see if you are suffering from depression (very likely from what I read in your post) then probably he will give you prozac for a while. This does help and since it is on a prescription and follows some course of treatment it will help you while you need it and it will help you withdraw when you no longer need it.
I also suggest that you really try to accept what office politics and situation is. I am not suggesting that you passively let crap happen to you but it helps you if you can come to terms with how things have come to be now. This will kinda relieve you from the stress of not finding any way out. Once you can accept the office situation, you will have a clearer mind as to what to do. So stop struggling against it (if you are) and start thinking of the good things that you get from the office for the time being while of course aiming for better (better can be more optimistic about the office or changing office altogether or changing profession - though changing is hardly a solution normally because changing means adaptation to new environment). The deal is to be positive about things, harder to do than to say, but with real rewards. Being positive will make you less down and this opens the doors for inter personal communications and ask you something: who will your superiors prefer to work with? someone who is depressed and always sad or some who is breathing life and cheering up?
See, the problem might be your perception with regards to things: look at some of the people posting here, who are telling you that some don't have a job and stuff. Well, you can start rejoicing from there: you got a job and a revenue. You have your family and you can watch movies with them. You have photography into which you can lose yourself for a while. You probably have friends to confide in. You have projects for the future. A lot of us don't have those and we still manage to survive and not be so down.
Seriously, the solution to what seems to be the load of crap falling on you right now is that you should really have a hard go at all the good things that are happening to you in life. While dealing with other not so good things once at a time, give yourself time to breathe and do not jam your brain with a lot of stuff... progress slowly but surely, don't try to overachieve and mess it all up, patience.
And don't run into a relationship thinking that things will be better. The guy could have lots of problem and might not be able to solve yours. Sort yourself out first and then start something up with someone else, it is not only fair that way but it avoids you more problem in the future.
First step to start with: write down all the good things that are happening to you, then all the bad things, then everyday enjoy as much as you can from the list of good things, but tackle one bad thing at a time. And go see the psych as soon as you can, don't worry, no one will think you are crazy, and there is no reason why anyone should know anyway. Get those anti depressants, they help.
In a few weeks time you will be fine :thumbsup:
BTW... what happened 4 months ago? you seem to be able to pinpoint quite exactly something that happened that changed it all.
And yeah... normally there is no shortcut (or running and hiding): drinking, smoking, having a fling/affair, gambling and so on will not make anything better. Everything comes at a cost but not everything has a good outcome.
... my two cents worth!