A good thing to do when you are struggling is get to a meeting, or go on the chat here, talk to someone.. write a list of all the things you want to do.. no matter how small or far fetched they sound.. maybe get busy with things when you are feeling bad i find it helps me to distract my mind from thinking thinking thinking..
if your job is really stressful is there any way of changing it..
well done on posting your thoughts.. you are never alone there are people here who will reply or chat.. what about the one on one line here, it really helps to sometimes get others opinions. Hope things turn around for you soon
P