That's great! And good for you to be thinking about this now. As you grow, you'll use your stats as a checklist for areas you can improve, lose or expand.
Keywords are interesting. It's good to see what search terms are bringing people to your site. Odd search terms can make for a fun post too!
Unique vs return visits are something to look at. It's fun to get new visitors but for a blog, it's even better to get repeated visitors.
Another think to check out, if your stats have it, is your bounce rate. That will show you how long someone is staying on your site. Don't let that # scare you but improving your bounce rate can be something you work on down the road. It's not something to focus now, while your developing and finding your rhythm but one to keep on your radar.