I just went through a resit year and it was worth it. I got DEEU last year and improved it to BBBE this year even though I was expected to get higher. The year went really quickly, I spent more time doing work and deadlines just flew by. I think when you resit a year, and you know less people in the year, it is easier to work hard. Although, two of my AS grades now don't count towards A2 and I'm dropping the E grade which I had planned from the start of the year. So at least now I will have a solid set of predicted grades and can work towards a high target feeling more confident of achieving.