How many times can you take a pre req? I failed my math requirement twice and it means I cant technically move on to second year. Will MAC still let you stay in the program? I had personal problems both times that made it really hard to focus on the course and its a huge weakness of fine.

I assume you can take a prereq as many times needed until it's complete since multiple attempts of the same course would still give an average mark of 0, if you were to fail it many more times in the future, when put into your GPA calculation

Why not take a break until you sort everything out? You aren't helping yourself by pushing the limits and bringing your GPA even lower, especially with this job market.