When I started with AquaTouch I didn't have any experience with AppleScript either.
What I did to learn was I explored other people's presets and tried to modify them to my needs.
I have some experience with coding but after lots of experimentation I have the skills I have now. Since the syntax is pretty easy and applescript has the ability to autocorrect it's syntax, it was pretty easy to learn
I suggest exploring my preset (since I guess it has the most scripts) with a TouchBar Simulator:
Then, after reading a bunch of code, open the "AppleScript Editor" on your Mac to bring up well, the editor, and tweak around.
There is a hammer and a play button there, the hammer button is a 'check code' which is very useful to debug without running the script. To run the script press the play button.
One thing to note: To automate an app with applescript it must support applescript!
On the AppleScript Editor, choose: File; Open Dictionary... and pick an app to see it's specific commands. If it's not in the list then it's not supported with applescript.
More information is also online about other general tools, I suggest apple's own documents and stackoverflow answers
If you need any more help or would like to know how to do what you want, no need to hesitate to ask here in the community!