Depends on just how far you want to go in your kayak from flat water fishing to the white water thrills.
Here is some tips that apply a lot to white water kayaks but work well for flat water boats. I expect that if you get lucky on hooking a big ole large mouth bass, that lake water will turn into white water pretty fast!
ACC Canoe School (more kayaks than canoes lately) and the Rec School a month later have been mentioned and are the best deals around to get instruction and meet other boaters. A lot of other good tips in this thread as well. In the meantime those ACC pool sessions are golden for you and even if you do not get in the water, they are a great place to meet others who will A: want to help you learn and B: work out on the water with you.
However, the more time you spend now in your boat the more comfortable and faster you will be as you increase your skill set. Get your boat outfitted properly and your seat balanced so the boat floats level in the water with you and your gear inside. Do your research and ask questions as you get this done.
Another tip to help your boat help you feel more solid is to practice your boat posture. First get your boat outfitted so it fits your body but is easy to exit from. Always test your outfitting on dry land then with a back up on flat water. Then work on getting four good points of contact with your boat. IE Your butt cheeks, your back to the back band, your hips / thighs to the sides of the kayak and finally the proper foot contact with your foot brace system. You want a firm fit but not restrictive.
Then work on hinging chest forward from your hips a bit with a more or less erect trunk just hinged forward a bit. Be centered in the boat. What this does is put your boat closer to it's center of balance and makes it easier to feel stable in the water. Then you can look where you want to go and perform the paddle stroke needed to get you there. Remember that in almost all situations, a moving boat is more stable than a boat setting still. Think that the bottom of your body is going to work the boat's hull (the Elvis effect) so it stays stable on the water while the top of your body is free to move around and work the paddle. I like to see people smile a lot and stay loose in their posture as a stiff body tells your kayak pony that you do not trust it and it can feel free to more easily flip you off!
Do not waste this last warm weather and water by not getting out on a local lake. I highly recommend you find a buddy to spot you while you practice wet exits or anything else on the water. Soon as you get comfortable knowing how to be safe when the kayak flips, the less tense you will be in the kayak and the more stable the boat will be. Be safe then have fun. You should start out working on wet exits with no spray skirt to get the feel of being underwater down, then move on to a spray skirt. BUT, be sure you practice getting that spray skirt off on dry land until it is automatic and having a boating bud there as you practice wet exits with your spray skirt on. If you get your wet exit down now in warm water, that is a head start for next season. The ACC pool sessions will help you get this wet exit thing down as well.
This year has had some good warm weather boating, but most of our good boating weather includes cooler water and air – sometimes down right cold. Difficult to learn when you are shaking with the cold.
I know the ACC Central Chapter does a lot of pool roll sessions. This is the best way for you to quickly get to know others, find buds to practice with and maybe learn the basics of a roll.
In the meantime, some research tips you can do anytime that will help:
Some ideas on outfitting materials at :
http://kayakoutfitting.com/" onclick="window.open(this.href);return false;
A bunch of tips on kayaking from NRS – some may feature NRS products but that is ok as they do a good job on most of their stuff
http://www.nrs.com/learn/?group=2" onclick="window.open(this.href);return false;
I have a library full of books on kayaks. The best all around theory and practice book I know for canoes and kayaks is Catch Every Eddy, Surf every Wave. Written some time ago, but a book I review every year and for sure before I teach a class. Highly recommend.
http://www.amazon.com/Catch-Every-Eddy- ... every+wave" onclick="window.open(this.href);return false;
A video that I highly recommend. Yup, it came out somewhere around 1992 if memory correct but the concepts still work just fine for learning the basics.
http://www.amazon.com/The-Kayakers-Edge ... ford+video" onclick="window.open(this.href);return false;
Here is Kent's web site. Lots of good stuff there. His book on The Kayak Roll is a classic and works as well now as it did when it first came out.
http://whitewatervideo.com/Ford.htm" onclick="window.open(this.href);return false;
I realize you stated that right now you are interested in mostly fishing and flat water boating. Good technique works just as well on flat water as it does on white water.
As always, do your homework and make up your own mind. Have backup when you get on the water even in a pool or flat water lake. But the more time you spend doing good quality time and practice in your boat the better time you will have when you get on any grade of flat or white water.
Be safe, have backup and have fun.
For what it is worth
dave