Rushing as a sophomore

I’ve decided to rush to get more involved but I’m a sophomore which I didn’t think was a big deal but after reading stuff online I’m starting to freak out a bit. Is it a lot harder as a sophomore to get into a sorority? And if you do get in one and your pledge class is mostly freshman then are those the people you’ll be stuck with or is it easy to become friends with anyone in your sorority. I’m getting really nervous and upset over this.