Action For Happiness provides ideas, facts, news and resources all centred on how we can keep smiling and continue to make others smile too!
https://www.actionforhappiness.org/ (better suited for ages 11-12 and parents)
YoungMinds exists so that young people have the strongest possible voice in improving their mental health.
https://youngminds.org.uk/ (ages 11-12 aswell as parent support)
Kooth offers emotional and mental health support for children and young people aged between 11 – 24 years and is available up to 10pm every day.