I'm a City of London lawyer. I get through the morning by drinking a lot of tea and then disappearing into a mental pit of stress, pressure and depression, before rising phoenix-like sometime between 1 and 4pm, to get a chicken salad sandwich and a bag of crisps from Marks & Sparks (as it's the place closest to my office and it's quicker if I have the same thing every day), eat that while working, then disappear into a mental pit of stress, pressure and depression for several more hours. If I'm lucky I'll be out by 7pm but more usually between 8 and 9 to round off a 12 hour day + commute.
I used to drink heavily after work to get over the stress, but that wasn't sustainable long term as the spectre of alcoholism was looming large.
Hate my job. Have done for 20 years now. Gah. Keep putting one foot in front of the other, blues. At least there's GOT.