That's exactly my problem, I can't work for more than 5-6 hours because of exhaustion. But in my case, I'm still in school and work full time, so that may be part of the problem.
That sounds incredibly stressful. Out of curiosity, how many hours do you typically put in at school (attending classes, studying, working on assignments, etc.)? What sort of work do you do?
I've thought about studying for a Master's degree while I work here - always wanted to experience a 'real' education since my undergrad was really disappointing as far as academics were concerned. A top school from a developing country still doesn't come close to an average school in North America or Europe unfortunately :(
type of work - Ruby and JavaScript coding in a software house, remotely, with very flexible hours.