The people pressuring you won’t be around for the consequences. You will.

Pressure is loud now and has no stake in later. The people pushing are in the room for one evening, and when the consequence turns up there will be no sign of them, because no arrangement ever existed where they shared it. You are the only person there who is present for both halves.

Push the decision forward an hour in your head and ask who is standing there with you. Keep one exit ready that needs no debate: an early lift, a text to a parent, a plain no with nothing added after it. Deciding in advance is what makes saying it possible in the moment.