There are two excellent resources that have practical tips for using Roam.

The mission of RoamTips.com is to provide the best tips, hacks, how-tos and workflows for Roam. You will find information ranging from how to strip markdown from Roam text and how to encrypt blocks through to how to copy Kindle highlights into Roam and how to display word counts.

There is also a Roam Tricks database which includes comprehensive lists of Roam shortcodes and keyboard shortcuts.

If you have a problem you need help with, I suggest three options: