What should I do to get more speed??

From a training perspective you need to be doing squats, jump squats, power cleans, snatches, step ups, and lunges to name a bunch of good exercises. Then, you should invest in a couple of books to read about sprint technique. Some great authors are Dr. Donald Chu, Vern Gambetta, Loren Seegrave, Charlie Francis, and Bob Ward. Each of these great coaches has put together various books on the subject of speed training. Check them out at Amazon.com!