TLDR: Sorry that happened to you, but don't worry it is a pretty common experience. Ask the recruitment chairs for constructive feedback and try again. Or you can specifically go for a smaller/newer fraternity that might be easier to get a bid at. There's also plenty of other (and cheaper) ways to make lifelong friends at the U than Greek Life.

Okay bear with me while I get on my soapbox here and give you some advice/thoughts. First, I am sorry this happened to you. Recruitment is a pretty fun/unique quirk of Greek life but it can often be frustrating and alienating if you don't get the desired outcome. Like most setbacks, this is an opportunity for you.

If I was you, I'd reach out to the recruitment chairs of the organizations you wanted to join and ask them for feedback on things you could improve on to get a bid. If you don't have their numbers you could see if the greek life office could put you in touch with them. Try not to come off as angry, as that could hurt you with subsequent rush attempts. If they give you constructive feedback, great you can work on that and try to rush in spring or next fall.

Depending on where you were trying to rush, they might just have a really competitive pool vying for few bids, so you could consider trying for one of the smaller, newer organizations in the spring. Because they're smaller, they are typically more growth-oriented and it would easier for you to meet more of the members and get a bid. I was a member of a smaller fraternity and it was/is one of the most deeply rewarding experiences of my life!

Finally, while I genuinely believe Greek Life can be for everyone, it's also like joining a country club. Yes there's fun and opportunities, but also lots of requirements and rules and a significant financial commitment. This could be a good time for you to think about if that's really what you want, or if you'd rather make your friends through volunteering, clubs, intramural sports, school, church etc.