So for a bit of background I went to a Russel Group uni for Mechatronic Engineering (an offshoot of electronics focused on robotics). My averages for first and second year were 71% and 65% respectively. However, my third year was full of complications outside of uni that tanked my mental health, and as a result my grades, leaving me with a 41% for final year, making my grade 48% overall. I thought I could handle myself in first semester (a mistake), but I did apply for mitigating circumstances for my dissertation and exams for second semester. The uni was oh so kind to give me a huge one week extension, and "to be decided" mitigating circumstances action for my exams, which upon getting my grades back I was told "no action had been taken due to grades aligning with previous results" despite the over 20% grade drop.
So what am I meant to do now? It doesn't seem like I'd be able to get into a university worthwhile doing a master's at with a third, unless somehow they see my grade progression and I'd be given opportunity to explain my circumstances? The graduate job market seems even more grim a prospect, with engineering companies having such high standards and rejections to everything I apply for rolling in. Did I just waste 3 years of my life because of one bad year?
I am really desperate for any advice on where to go from here because I really feel up a creek without a paddle.