School is a very individual things these days; I got my second degree when I was in my 50's by taking one or two courses a semester!

I think it is great you are working and going to school but that does cause stress, is hard to do! Like RomanSunburn says, I would take some time to think about what I really want. I love accounting and was going to take the CPA exam, etc. but then realized I did not want to be an accountant, I just liked doing accounting problems Figure out your passion and then things might become a little more interesting and a bit easier.