Basically, I used to do weekly acting classes and I also had an agent. It was a good run at the time as between the ages of 8-11, I got 5 television jobs including a main speaking role in Casualty. When I joined secondary school, I took on a load of sports, so I ended up dropping drama and with that my agent, as it was a joint thing. Obviously now I regret that, seeing as acting is something I love doing and the only thing I've done in the way of it is GCSE Drama.
Next year I am hoping to go to University, a few of my choices mainly being around London. I am now looking for to get another agent, I can't go back to my old one as I'm to old now, but I've been looking at a few other alternatives and I've come across a few good ones such as Mark Jermin, A&J etc, and am a little unsure where to go from here.
I don't live in London, but would be willing to travel for interviews/auditions. What should I do? I've already emailed a photo and CV to a few agencies, but apart from that I really don't know what to do?
Thanks to anyone who had the patience to read this.

Oh and also, what do all these 'DD' acronyms stand for?