The company I work at severely limits the days we can take off, like most requests I put in will be denied. Additionally, I don't get paid that well or even get paid for time off or holidays. Obligatory: the job I work at currently is co-op, I'm still in college.

Yesterday and today I was severely burnt out so I said I was sick when I wasn't really so I could get some (unpaid) time off. It's likely that the current release we're targeting at work will be in jeopardy because of this. I feel so guilty, should I be? I really needed this time, I doubt I could have continued much longer without this.

TLDR, please help me justify not giving a shitty job my unconditional 100% and being shitty back every once in a while