I got my kayak at the beginning of the year. My first time out was to a place that had very easy access. It had a ramp that you could pull your vehicle down and unload right there. It made adjusting to the kayak really easy and I didn't have to focus so much on making sure the launch went smooth. I recommend that no matter where you go, choose something with easy access and don't take all your tackle. If you dump it over, you'll lose anything not tied down.
One last thing, don't go on a day that has 20+MPH wind. Choose a day with less wind like 5-10. You don't want to have to focus on big waves while trying to adjust to the stability of a kayak.