Hi!
I started my 4 year PhD course officially in Sept but was just doing training courses and rotations. I am due to start my real project next week, *eek!*
Seriously, everyone I have spoken to says they have the same worries about motivation, it's natural. I had a panic over Christmas, wondering if I was good enough or whether I should just get a boring job and forget about an academic career, but now I'm back surrounded by papers and thinking about the wonders of the brain I realise that it suits me, hehe.