Those are all good replies. Most starting brewers are tempted to experiment. I've heard it referred to as going "Mad Scientist". I've done it. After a couple of simple extracts, I tried making my own recipes. They were drinkable, but not good. I went back to established recipes and worked on my process. Now I've received a couple of BJCP scores of "good" and "very good", each one point short of the next level: "very good" and "excellent". Friends and even strangers are telling me that my brews are better than commercial examples. But that took over 30 batches. So, while I admire your enthusiasm, I agree that you should wait to experiment. But, if you do, consult some proven recipes for ideas. And a teaspoon of cinnamon is probably enough. Do let us know what you do, and how it works out. None of this is criticism, it's encouragement. Welcome to brewing, and this forum.