There's really only one non-obvious thing to be aware of: when your guitar cable is plugged in, the pedal is using power. Unplug it when you're not playing.
Instructions are written for the absolute beginner; This kit is perfect to dip your toe into the "DIY guitar pedal" waters.
You can also email me directly but you'll get a quicker response through those groups.
There are dozens of other DIY pedal communities as well, so of course you can seek help anywhere else.