Is there any way we can fix the fuel gauge sensor without a high cost? on 2007 Chevrolet Trailblazer

The fuel gauge shows empty with a full tank of gas and I cannot tell when I am out of gas.

every time you fuel up hit the trip odometer you should have an idea how many miles you can go on a full tank 200 or 300 mile between fueling up or spend the money put a new fuel pump sending unit in