I NEED AN OPINION PLEASE HELP

Okay, so I have an exam tmr, and I desperately need to study more for it. But lucky me, I work tonight 4-9 and don’t get off school till 3 pm. I’ve been thinking about calling in sick, so I could have more study time, but it feels super dishonest. Plus, I already called in sick once last month. Please give me an opinion!! I need help making this decision