Need advice about dropping my sorority..

[ecstaticboom]

Okay, so I've never been a girl that pictured myself in a sorority. I didn't rush and I really didn't think I'd ever want to. But, my roommate did, and she joined a sorority and seemed to like it. The week after bid day, her sorority was having an ice cream social and I went (for the free ice cream), and I guess the sorority was low on numbers and liked me, so a few senior girls came to my room that night and offered me a bid, and I accepted.
I thought it might be fun, so I figured I might as well try it.. And also, I felt bad and didn't want to say no because they seemed so enthusiastic about it. I went through New Member period super hesitant because it didn't feel right.. I didn't feel like it was right for me and I didn't really enjoy it. But every girl I talked to said to just wait till after initiation and I would like it better.. So, I initiated.. Stupid decision.. Because now, I'm thinking really hard about dropping.

It's now been a semester of me being in the sorority, and I feel like my college experience could be just the same, if not better, without the sorority.. And it's so much money and time being wasted if I decide that I don't like it. I just don't feel like I like anything about greek life. I'm making the effort and going to events, but I still don't feel good about it. I feel drained about the whole situation. So now, I'm trying to plan housing for next year, and if I stay in the sorority, I have to live in the house, so I have to make a decision very soon. Do you guys think I'm being unreasonable? Should I make myself stay in longer? I also joined a professional frat associated with my major, so I will have good connections on campus still if I drop the sorority.

And, the sorority accepts anybody (which is nice), but they have a pretty bad rep around campus, and greek life is big at my school.. The girls are nice though, which is a plus. I haven't made any good friends in it yet though, which makes my decision a bit easier.
Any thoughts? I know in the end I have to make my own decision, but I'm super indecisive about everything and confused about this situation in general, so I really would love advice.