u/Admirable_Tension_56

So I failed my first year of university due to serious health issues and resat, passed and moved onto second year where I averaged a low 2:1 and in my 3rd year I’m averaging a 1st. I’ve always been a high achieving student throughout school and a levels but due to bad health hadn’t so well in my first half of uni.
I want to apply to top unis for masters and wanna how bad this affects my chances?