KeviMac,
When you get the urge to try some different kits, there are gobs of appropriate Estes designs out there. Download their catalog online and scan through the front parts to get an idea of the variety. If there are Hobby Lobby stores near you, they run 40%-off coupons frequently (HobLob usually has bunches of kits and motors) and you may want to wait a bit until the next coupon (check their website). Other craft stores like Michaels also have discount coupons, altho not all the stores in their chain carry rocketry supplies. And peek into your local hobby shop, they may have something for you.
There are also a few other "big" companies out there selling rocketry stuff, like Quest. They have a good line of kits, reasonable prices, and they also make their own blackpowder rocket motors (some people like Quest motors better than Estes!). Apogee has a lot of stuff too.
When you are ready, step out and order some goodies from Fliskits or any of our other great vendors. You will quickly get lots of recommendations for these kits, and you can't hardly go wrong with any of them. These guys are all seriously "into" rocketry and will give you amazing product support.
Come on back often and ask all the questions you want, and don't be bashful. Everybody here is pretty good about answering without making fun of you...at least, not too much, until you really deserve it for doing something like forgetting to use the protective wadding or something.
BTW, if you want to get up to speed a bit quicker, there is an extensive vocabulary of rocketry terms over at EMRR. There is a big list of plans for old rockets at JimZ's website and at YORF (ye old rocket forum). There are gobs of old catalogs and reports at ninfinger. Basically, your reading list begins over at
https://www.rocketryforum.com/showthread.php?t=539 (if you haven't been there already)
We're glad you decided to join in the fun!