Should I actually spend time working on the exam review sheet my instructor give to me? The review sheet is not graded or should I just look what the review sheet has and just study using the notes I have?
What do you guys do? I’m currently at a community college doing general courses.
I would do it. Sometimes, the review sheet contains problems that you will find on the exam, so it helps to study/complete it. The professor gave it to you for a reason, so I would make use of it!
A review sheet is a HUGE hint about what will be on the exam.
Your username tells me that you hope to become a pharmacist. As someone who uses pharmacy services, I most sincerely hope that you plan to use the review sheet and do your best work to prepare you for your future profession! 
What’s actually on the review sheet? If it’s problems, then you should definitely do them. If it’s a list of topics, then you should definitely know them, but you should also consult your notes. What’s would you have to “work on” for the review sheet?
You should definitely incorporate the review sheet into your studying. They are there to direct your studying to make sure you are studying the right topics or that you are studying the right way. It would be silly to disregard it, but perhaps, I’m not really understanding your question. You should study from the review sheet and from your notes.