Q: Where do I find help using my ipencil?

Use Apple Pencil with iPad Pro - Apple Support

You can start here:

Use Apple Pencil with iPad Pro - Apple Support

Beyond that look for Apps in the App Store that work with the pencil.  You can search for "Apple Pencil"  to search for Apps that will do what you want.

You can create PDFs you can annotate from web pages. A couple of App suggestions:

PDF Cabinet to annotate articles and websites as PDFs.

https://itunes.apple.com/us/app/pdf-cabinet-read-annotate/id764366087?mt=8

Adobe Sketch to Draw and sketch on photographs.

https://itunes.apple.com/us/app/adobe-photoshop-sketch/id839085644?mt=8

Also, you posted this in the MacBook Pro forum, but the pencil only works with an iPad Pro.

What advice? What Notes?

The iPad has a default Notes App you can try if you want to, look for this icon on your iPad's screen:

Notes is a part of iOS so cannot be deleted.  if you're not seeing it, try searching for it.

There is also a high-light section in the App store of Apple Pencil supported apps, or just searching for Pencil will pull up a lot.