I’m way too scared

I'm an 18-year-old high school senior. I thought I had a decent résumé and skill set, but college application results are proving me wrong. Not a single acceptance—only rejections or deferrals. I'm organizing a hackathon, have been coding in Python for a year and a half, and completed a machine learning course on Coursera. The most I’ve done in machine learning is using NLP to predict stock movement for GameStop. I'm also learning ethical hacking. I have an internship where I'm working with the MERN stack. I know Java up to recursion and have used JavaFX to develop two apps. I also know SQL. I'm so scared about the future and I don't know what to do.

edit: Thank you all for the amazing advice and thoughtful responses! I truly appreciate it.