Friendships are important - they make you feel good and give you support when you need it.
A good friend will make you feel happy and will listen when you want to talk. They will help you when times are tough and be kind and caring towards you.
In an unhealthy friendship, someone might try to make you do something you don't want to do, or doesn't keep a secret you have told them.
Sometimes there are problems with friendships - you might have an argument or simply grow apart.
By young people, for young people
"I get angry and it can often lead to me getting aggressive and shouting at my friends.
"I deal with it by calling my boyfriend and crying. He always talks me down and helps me to see things clearly."
Olivia, Age 14
(Some names changed to protect people's identities)
If there's an adult or friend you can trust, have a chat with them about your questions or worries. They might be able to put your mind at rest or give you some useful advice.
If you live in Norfolk:
If you're 11-19 you can text ChatHealth on 07480 635060 for anonymous and confidential advice from a health professional. ChatHealth is available Monday to Friday 9am - 5pm.
You can also contact the Norfolk Healthy Child Programme by calling Just One Number on 0300 300 0123. Our opening hours are 8am-6pm Monday-Friday (excluding bank holidays) and 9am-1pm on Saturdays.
If you live in Waveney:
You can call the Suffolk School Nursing service on 0345 607 8866 or email childrenshealth@suffolk.gov.uk.
Friendship advice, including the importance of friendships for your mental health, understanding when a friendship is unhealthy and coping with peer pressure.
Information about friendship issues, including falling out with friends, being bullied by friends, fancying a friend and missing a friend.
How to spot an unhealthy friendship and how to deal with a friendship ending.