My first tip would be to head over to the video section and watch as many videos as you can, very helpful for adjusting your technique and working out what you're doing wrong when riding, they also work as great inspiration for new tricks to try and learn.
Living in Stockport is quite handy as far as attending group rides go (see rides/locations section) as it won't cost you too much to get on the train and travel to some great riding locations such as stoke, birmingham, nottingham etc. Group rides are very good because you tend to pick things up quite fast being surrounded by other riders who can advise you/show you how to do certain things.