Is it possible to attend Senmon gako with baito?

I'm studying japanese at my local uni for three years and then planning go for a 2 year vocational training preferably in IT (I don't have a math background though),
I was wondering if it is possible to work 4-5 hours along with gakko without having a stroke, since I don't a strong financial background not having a side income to sustain myself can be a problem.