Two seamer movement?

I have been pitching very well this season on my team. I have had good fastball control. I have a two seamer but the problem is it doesnt always have good movement. I just wanted to know what i could do to make mine more consistant and have effective movement. any replies would help alot thanks.

height- 6 foot 2
weight- 155
pitches- 4 seam, 2 seam, curve, circle change
age- 16

yesterday I pitched and i threw 5 and 1/3 innings and I up 2 ER and had 3 strike outs. When i came out of the game we were down 3 to 1. We ended up coming back in the last inning and winning.