if I may ask , how many practice exams did you do for legal last year ?
I didn't record the number, so I'd be guessing in telling you. I'd estimate somewhere in the range of 10-15. The actual number of prac exams doesn't really matter. It's just whether or not you learn not to repeat the mistakes you made in the last exam. In a similar vein, it may not be a good use of your time to repeatedly do easy questions that you know you'll get. Instead, go through exams and highlight what you think the harder/'higher order thinking' questions are, and then focus on them.
This is assuming you have a good hold on your content first. It's not a good use of your time to spam exams if you don't know your raw content, as you'll get little out of doing the exam itself in comparison.
Did you revise everyday for legal the month before ?
I tried to incorporate it as often as possible. Probably not every day, as I was juggling 5 other subjects alongside, but even if you can get a nice 15 minute period it, it can help more than you think. Doing the same amount progressively over a month is better than trying to cram it all into a few periods.