Wishes

So after 15 years of education and working really hard to get where I want to go, I realise that I've managed to get where I am however unless I get certain grades now, I still can't get on to do anything I want to! This thought has of course spurred me on in my revision, however I realise I'm not entirely sure what that thing I want to do...is...
The good thing about my subject is that you can do loads of things from it but I just don't know what path to go down. I've spent so long working to get where I am now, I kind of forgot there was a life after which had to be decided upon too. I mean, I'm not complaining, I'm aware how lucky I am to have the choice, but decision time is looming!