Yes I'd definitely get a bike to build up your skills and handling, as you may have to start from scratch again if you left it till next year. I passed my CBT mid-July and got myself a YBR125, I love it and it's perfect for me (I'm female and quite small at 5'3"). However have seen some quite tall guys on them and they don't look out of place. I've done nearly 1400 miles on it but I still have to perfect some things! There's nothing like getting out there and riding though, I have to ride on my own so forced myself to get out and tackle all the things I was nervous about (roundabouts, hill starts, busy towns, dual carriageways etc) - practise makes perfect is true (although my riding is still far from perfect ). However I am now confident enough to ride in most situations