I had some of the same issues when I first got my bike. It felt totally awkward; I had no idea what to do with my hands; I couldn't release my cleats from the pedals (fell over twice on the ride home from the bike shop when I bought it!!) I even thought I broke my shifter on the righ side when I fell over - it just wouldn't shift (fortunately, I didnt. My bike has 2 chainrings up front, but can accomodate 3 - I had shifted up into the "ghost" gear that wasn't there and you just have to push harder than normal to drop it back down into range )
I just kept praticing, had DH hold the bike for me while I practiced on my pedals, and moved all over the bars. 4 months later, I'm comfortable on it, can stand up, have had no issues shifting since LBS explained how to do it, and ride way more aggresively on it (and my other bikes). It's incredible what we can learn to do if we just keep trying.
Good luck - stay with it. You'll be fine with practice.