I recommend joining Crappie Anglers of Texas (CAT)
to learn all manner and methods to locate and to use different techniques to get crappie under different weather pattern and help in figuring different lakes personalities/structure/seasons, etc.
CAT has a tournament on Sandlin this coming January. The schedule at this time doesn't show where the weigh-in is being held but in years passed, it has been hosted at Big Earl's in Pittsburgh. Fish the tournament to learn more about the crappie there in a specified environment that challenges you or simply join us at the weigh-in where a lot of good intel is shared.
I'd also find time in the interim to visit with Big Earl's to discuss crappie fishing. He is a wealth of good info and besides, the food is great.