Most important day of me life

I'm so scared, I'm so scared, I'm so scared!!!!!!!!! Tomorrow is my cross country district meet, I've been training for this day since May 20. Last year my team lost our championship that we've held for 8 years and it really upset me so this season i've been training like crazy and I've gotten like crazy faster. But I feel like it's not even enough, I'm scared I might mess up or something. If I don't beat my best time for 2 miles tomorrow than I'm gonnna feel terrible, though I think I might be able to I'm just so nervous. Gahh!!!!!!! I don't know what to do!!!!!!!!! I'm just so freaking scared!!!!!!!!!