For one of my courses, the professor kept delaying reevaluation during winter holidays at which point I got tired of emailing her. Is it too late to contact again to review the final grade? I really think it'll make a whole grade up worth of change. I have never done this before so I don't know what the deadline is.

I heard you get 1 year for asking for a reevaluation.

However I dont know if its one year from when you took the course or from the time the grades were released. Either way, you have time.

Apparently you have 5 years, but it is better to do it sooner rather than later.