Hi y'all

I've been lurking for a few days, and I have learned SO much about Greek life. Y'all seem so sweet and helpful! So I'm hoping maybe you can help me too.
I'm a junior at UNC Greensboro, but this is my first semester here after transferring from UNC Chapel Hill. While I was there, I attended some informal recruitment events with their DZ chapter, but by the time I was considering pledging, I already knew I wasn't going to be there much longer.
From everything I've heard, being in a sorority is a great way to make new friends and be involved on campus, and I would really like to be in one. But... I AM a junior. When I start thinking about it, I have so many concerns: Do sororities really want girls that are only going to be there for two years (lol maybe three)? Will I have a hard time finding a group that will want me? And most importantly, will I look like an idiot during Recruitment week surrounded by freshmen?
Were any of you juniors when you first pledged? Does your sorority have a unwritten rule about bidding juniors? Any help, advice, support you could give is needed
Just for reference, Recruitment Week is Sept. 10-15 and the sororities we have here are:
Alpha Chi Omega
Alpha Delta Pi
Chi Omega
Phi Mu
Sigma Sigma Sigma
Thanks