New to MacOS & BTT, where do I start?

So ive just bought my first MacBook and ive downloaded BTT. Its great, however there's so many tools I just don't even know where to start!

Ive picked up the basics of constructing a custom Touch Bar layout, but am not sure on where to go to create advanced layouts (creating & implementing scripts)

Any help would be appreciated! (Or if there is a clearly signed "Newbies here" section, io apologies!)