Let her go, but tell her shes grounded afterward and then pick her up from the dance. Those after parties are ridiculously full of adult behavior, so she doesnt need to attend one.

I think you should've just grounded her from any social interaction(parties, sleepovers, etc.)and get her a tutor. That way she would be punished and get to go to homecoming. I can understand what you were thinking, but that is a huge part of a teens life

I never saw the appeal of Homecoming.

Instead of punishing her, you should've helped her with subjects she is struggling with. I don't know the whole story, but if she puts an effort into her work, your punishment was unfair.

Homecoming happens within the first few months of school. If her grades are that bad already then you did right by grounding her from the dance. I only went to one school dance. I left early. Nothing like watching while half your classmates grind and feel each other up to horrible music in a darkened, hot, and humid room while the other half stuffs their face over by the chocolate fountain, and destroys the dresses they spent $100+ on. That and no one was ever like- 'that homecoming dance was so amazing last night!' Which is more important to the success of her future? Good grades that open doors to better colleges and better careers or going to a school dance that she will forget in two weeks?

If your kid has been crying for hours, that's probably not the correct consequences for their actions. You're supposed to make them realize what they did wrong, not cause hours of deep emotional pain.

how about take some parenting classes before your daughter disowns you the minute she turns 18.