To increase your speed you need to work on a couple main components, 1, power, can come in the form of a weight session or plyometrics. Maximum speed with Max v workouts, Acceleration workouts and speed endurance, so you can hold for for a longer period of time and boost fitness.
Check out for information on the above topics, browse the whole forum before asking questions and have aloo at some other peoples workout logs.
goodluck
