I agree, I currently have 1B, 6C's, 2D's and 1E at GCSE but its not holding me back, but I was put in the wrong sets and it annoyed me thus making just not try. Last year I failed not because I couldn't keep up with the demanding work at AS levels but because I had freedom and I used it. Now I'm back to 3 AS levels and I am struggling a bit but I'm getting the help I need and currently keeping my target grades. I didn't get the help I needed at all at GCSEs, for me atm AS levels are easier than GCSE for me.