Ok I am guessing you have rabbit ears and a loop.
What would help is if you could have some direction on UHF it might help. It's not a guarantee as nothing in antennas is that way.
This is the antenna I would try.
TERK HDTVi Directional indoor UHF/VHF HDTV antenna
It has a big cousin called the Terk HDTVa. "a" is for amplified. DO NOT BUY the AMPLIFIED version, no no no... You are too close to the towers.
Then once you have that antenna set up you will have to try pointing the end (like an arrow the small part is the front and the base with the bunny ears is the back) at the Chicago towers about due south from you. Then rescan. If that doesn't work turn the antenna a little and rescan again.
But with the Terk HDTVi you have a much better chance of "nulling out" the weaker out of town station.
And of course if you can get WCIU then extend the rabbit ears (if needed) to pick up the VHF stations.
