Improving on muscle strength and conditioning is a good help. Increase on your core and leg strength

http://www.softballperformance.com/blog/softball-conditioning-core-training-is-the-secret-to-more-power/

Try these videos, they may be of help:

http://www.youtube.com/watch?v=5lM6KjryEvI

http://www.youtube.com/watch?v=beLJHFAixjo

http://www.youtube.com/watch?v=oeDnEx2wNd0

http://www.youtube.com/watch?v=9IgXLj2gCYc

http://www.youtube.com/watch?v=Don42S6D_lk

http://www.youtube.com/watch?v=20aTDoL0LV4

Improving on muscle strength and conditioning is a good help. Increase on your core and leg strength

http://www.softballperformance.com/blog/softball-conditioning-core-training-is-the-secret-to-more-power/

swinng all the way through.. swing level... and squish the bug with your back foot.. using a good bat and practicing helps too