Last year I would've been like I started too late, I didn't finish the syllabus etc lol. This year I took into account all of those mistakes and made sure I started early and forced myself to follow a timetable. It feels weird but I can honestly say I have no regrets, I tried my ultimate hardest at them. I suppose I'll just accept what I get on results day now. Haven't thought about results very much either which is weird as last year I was going crazy... oh how things have changed..
That's exactly how I felt this time last year- I ended up doing better than I expected (not brilliantly, but better) and then discovering that GCSE's really don't matter that much in the grand scheme of things.
It is excellent that you're thinking like this, GCSE's turn slackers into hard workers.
If you do a-levels your GCSE's will become almost meaningless except that they will have taught you to work hard (prepare for a cliché) and so you will achieve your full potential.
People say GCSE's are useless, maybe they are on paper, but, they teach you so much.