If an adult has been making you feel uncomfortable by asking you to send them images of yourself, you can report them on the CEOP website. It is wrong for anyone to be pressuring you in this way. If you are under 18, they are breaking the law.
Consider what you’d rather be doing than pretending to like someone else’s Facebook updates. Channel your energies into doing those other things by making a plan to do them instead of giving the time to social media.
When sexting goes badly, it can make you feel ashamed, guilty, embarrassed or anxious about what people might say. The sooner you talk to a trusted adult, the more likely you can stop the image from being shared further.
Sometimes people send naked photos because they are made to feel guilty. They might say “I sent you a photo, so where’s mine?” or say that you “promised” them. This is emotional blackmail and can make you think that you ‘owe’ them when you do not.