Some useful links on mental health for young people:
Guidance from Mind, the mental health charity on how to look after yourself: Coronavirus and your wellbeing – for young people
Advice and tips for looking after your mental wellbeing from Young Scot. They also have Aye Feel: find information about how to look after your emotional wellbeing, support from organisations around Scotland and tips on how to promote a positive mindset. Check out the #AyeFeel tag on social media for the latest updates.
Childline offers online support, advice, tools, videos and games to support your mental health, as well as their free phoneline.
My World of Work has useful links on their Wellbeing support page.
See me aims to end the stigma around mental health issues and has a section for young people with online advice and videos.
The Mix offers support to the under 25s on mental health, as well as bullying, relationships, your body and much more.
Here is a Wakelet of these links, as well as some additional ones.