Simple Syrup Recipe:
Boil one cup of water.
Add a cup of sugar (or honey, or agave, or whatever you prefer!)
Stir until the sugar is completely dissolved.
Let it return to a boil for one minute.
Turn to low and let it simmer for a few more minutes.
Allow the syrup to cool down before funneling into a clean glass bottle with a tight-fitting lid.
Label and date your syrup and store it in the fridge.
Sometimes I use a lazier method to sweeten my tinctures. Pour a dollop of honey into a strained tincture and give it a shake until it is dissolved (or until your arm falls off). It works, but it will likely end up being super sticky and thick compared to the simple syrup sweetening process described above.
I hope that helps to clear up some of the processes and encourages you to play around in your kitchen and have another way to use your herb harvest before the final frost takes it from you.