Elsa-support have many great free resources for emotional support such as anxiety, mood awareness, anger and calming.
You can find some ideas for wellbeing apps here:
Information about Mental Health in children:
Young Minds have some good advice for parents to help their children during the lockdown:
Some Useful Resources
'I Can' Journal
Mindful Challenge Cards
When I'm Anxious...
Let's Feel Better
Ground Techniques For Anxiety
Brick Therapy Cards
Click here for more information.