Online counselling is like talking to a therapist on your computer or phone instead of going to their office. Just like how you can talk to your friends on video chat, you can talk to a therapist too. It's like having someone to talk to when you feel upset or worried. They can help you figure out how you're feeling and give you ideas on how to feel better. It's important for grown-ups to take care of their mental health, and online counselling is one way to do that.