If you end up trying to negotiate with your feelings, especially Future Feelings that Future You isn't even feeling yet, use action there, too, like: "If this was a mistake and someday I feel the thing I'm so afraid to feel, what (if anything) will I do about it?" Feelings are coming one way or another, you aren't the boss of them but they definitely aren't the boss of you, either. Make friends with them, invite them in, see what they have to tell you. You can decide what to do about them.