We all have admin rights to Libguides, so make sure you're making changes to your group, not all ECASD Libguides.
Admin > Groups > Your School > Edit button
Google what you want to do + libguides. Almost always someone else has already made a Libguide for it.
Libguides itself has great help pages. There is a support link on every edit page.
Libguides also offers a lot of free webinars for making things fancy. You can find a training calendar when you are logged in to https://ecasd.libapps.com/libguides/.