Mild panic attack

The reality of GCSEs is something that is both hard to avoid and very easy to block out. The sheer amount of STUFF that we're required to learn just makes your head burst. I've got no idea where to begin. I'm sitting on my floor trying to revise, but as soon as I start looking at one thing I realise just how much of another I've got to learn. I've no idea how to start! So then I end up avoiding... By blogging... Or reading. Or youtubing. (Yeah, i just verbed youtube.) And then I feel guilty, but still don't know how to start, and moreover I've got nothing done, because of how much I NEED to get done. Aaaagh! Vicious circles suck!