is it fine if i post my outline for the fic rather than the fic because there’s no way i can poop out a good first chapter at all so soon

The rules ask that people participating post a fic, so we can’t accept an outline. But even part of a first chapter, so long as it was posted as per the rules would guarantee your participation and entry into the challenge. I suggest writing what you can and posting that – chapters are allowed to end on cliffhangers.