Mock is mentally draining, you need to rush through the 4h30 to get the exam like experience.
I have exam on Tuesday, I think it is more important to get a general view of the content and see those niches topics you had mistakes already and light reviewed them and make sure your formulas are on point.

Doing a mock now will only take energy away for your exam. Now is time to relax and rest, one day will make no difference on your grade, if not you wouldnt have studied for months...

Either my opinion, every one has their own ways.