I would suggest getting out there and getting involved. Look into a committee for student government or Leap Frog (I guess that's still around).
Most importantly, make lots of friends this year! Yes, it will be much harder as a sophomore, but it's going to be really hard if you don't have friends in that chapter pulling for you.
I was active all four years at Ole Miss and I have seen sophomores get bids into every. It might not be the easiest thing in the world, but it does happen!
Just an FYI, it's probably not a good idea to go around saying "I want to be an XYZ next year!!!!" Not that I think you would, but I have seen it before!!! It didn't have a happy ending!