All work and no play makes Unbreakable Will quite breakable.

[Iceglow]

I think I'd lose it entirely if I had to work two jobs.

I could maybe swing it for a couple of weeks but I know it would do horrible things to my mental state.

I can attest as to how tired you get doing this but I have to admit I never once found myself in work mentally lost. I was always sharp as a knife in work. When not working I was a wreck though.