I recently started having a lsight stick from the front brembos. I started investigating when i was told my brake light was sticking on. Anyway after this is looked at the disc and pads and noticed one side of the pad on drivers side was far more worn than the other. I cleaned the caliper up and re greased and all pistons move freely (with my hands pushing them in) i rebuilt and seemed to work but this has not fixed my brake pedal as i noticed that it doesnt return all the way to the top, hence why my brake light is sticking on

Any ideas