I agree with both of the previous members' comments. Shorten up your running distances, focusing mostly on sprintwork. Vary it up on different days: 15 seconds, 30 seconds, 60 seconds. Rest twice as long as you "work." So if you're performing ten 15 second sprints, rest 30 seconds between each.
Then really focus on your throwing. You should be throwing 5 days a week from flatground (long tossing, to build durability). Then, when you feel ready, work your way off the mound, building up to 60 full speed pitches (90% fastballs) by the first day of practice. I think it's really important to already be at 60 full speed pitches from the mound at Day 1 (which is 1 month away).