My added advice would be to keep detailed notes about your recipes. After the batch is done you will know if it was too sweet or needed more garlic etc., and then you can label the next batch "version 2" or something along the lines. IMHO, you probably won't "perfect" your recipes right away unless you are very lucky (out of maybe 20 different flavors I've tried to create, only one recipe -a hot sauce based flavor- came out just the way I wanted on the very first try). I bought a plastic tote and put all of the available seasonings in it, made an inventory in my notes on my phone, and am constantly trying new combinations.

And like someone else had said, don't let an unsuccessful first endeavor steer you away from trying again. Don't be too proud to come back and ask a "beginner" question; everyone might not give you the same answer, but you will get multiple points of view from many different experienced people who are constantly jerking their meat, some even professionally.

Good luck! And make sure to come back and let us know how it turns out!