If someone is trying to make you feel worried about something you weren’t worried about before, or tell you that you should do something that doesn’t feel right to you, or telling you that it’s your fault that they feel a certain way or that something happened to them, don’t believe it.
This takes diligent self-awareness and self-trust. For example, I once had someone accusing me of bullying her (anyone who knows me knows that’s something I would never do), but what was really happening was that she was attempting to bully me into something and I wouldn’t take it on, so she tried to project her feelings of frustration onto me. I politely told her that I was not responsible for how she felt and that her frustration with me (because I wouldn’t take on her stuff) was not my problem.
You don’t have to take on other people’s feelings or problems. If you do they become your own and can be extremely difficult to deal with (because they weren’t yours in the first place). Be kind to yourself and don’t take it on.