Yeah, Minotauro made a good point.
I did the same thing, worked a full time job and still went on to get an education at the same time.
While I didn't have flexible hours, both my work and education were design oriented so I could do stuff at work for school giving me more free time where I needed it.
It sounds painful but its really not that bad once you get into it.
Regardless, best of luck with your endeavors. ![]()