I don't know a lot about Kids Help Phone, but I know that isolation is a tough thing.
I did a research article discussing what parents need to be concerned about with regard to the really high rate of home-schooling happening during the pandemic. That's available at cardus.ca, and I reference Dr. Gordon Neufeld, who is a foremost expert on attachment and learning and in helping parents have a bit less stress over that, particularly for children under six. While it's difficult to have a new normal form of home-schooling, there are advantages that can come from not being in a school-based environment, so I recommend that article.