Paul, I'm at about 14 hours and pretty much ready for solo. If it wasnt for the fact that my currently mentally busy job is keeping me from studying for the airlaw exam then I would have done my first solo flight before the airfield I'm learning at closed the runway (grass strip) for the winter.
I found in my first few hours exactly what you have in that it all seems like way too much to take in. However, by the time you've finished the upper air stuff and start doing circuits, most of the things that seem tricky now you'll be doing without even thinking about it. I've found landing pretty difficult to get to grips with but eventually it just clicks and then you've got it. Like HP says, its a learning curve of varying steepness and its fairly steep at the beginning. Where I am now isn't too bad but I fully expect to be confused and frustrated with myself again in the not too distant future!
Anyway, stick at it!! Like 'Chuffer' says, if it was that easy, everyone would be doing it!!