I think we all feel that way in some part of life.
Try to rest a little, sleep help a lot for me. Since you are venting, I believe you just want some peace, a little of relief..... i dont believe saying this but.... take a smoke, take a drink, then... sleep a little. We all need a break too. Hope you get better.
PS: Smoke is bad for you and drink is also bad, but they're cheap and worked when there was no meds to help.