My suggestion would be to concentrate on one slow presentation, and one fast presentation. To get really specific, I'd suggest Splitshotting and Spinnerbaits.

Splitshotting will catch you a lot of fish, it's quick, easy, and cheap to rig, and shockingly snag resistant. It will teach you how to rig plastics straight, watch the line, and feel the strike. I like to splitshot craws and lizards. They seem to cause less trouble with rolling during retreive than a lot of other style baits. There are lots of plastics that work, few that won't. Tips: Use for 20' max water depth, light winds, blue skies or cloudy.

To my mind, the spinnerbait is the obvious choice for a new baitcaster user. This bait is very snag resistant, so if you don't cast it exactly where you want, you still have a good chance of getting it back, and you can put in more casts per day than about anything else.  Casts well in the wind, and catches fish, too.  The spinnerbait is a complex subject, lots of tricks and potential for tweeks and mods. This is a bait that's worth spending several seasons really learning well and gaining confidence in it.  Tips: Use when cloudy, windy, rainy, shallow or deep water, at night...clear water > fast retreive. Dirty water > slow retreive....vary the weight, color, and blade type to work for each situation.  Did I mention AT NIGHT?