Spray the loaded spring with lubricant and work.
How to change door handles on chevy cobalt.
Chevy cobalt door handle fix youtube.
Disconnect any remaining connectors.
Then you will need to remove any plastic from the door so you can see the inside of the outer door handle.
Have to remove inner door panel and is usually 2 bolts around 10mm that hold handle in but the rods must be removed first and these rods are only held in place by a spring steel clip that just flips out off the rod at the handle end.
I know how to do some things on the car already.
First remove the inside door panel.
Spray the loaded spring with lubricant and work the spring back and forth also the three screws are 10mm.
Or if i should just save my time and take it to a mechanic.
To remove door panel look for visible screws under and around the edges and or handles remove all these.
Remove all screws remove inside door handle and door switch.
At the top just lift the panel and it should come off.
The exterior door handle of my car just broke off when i tried to open the door.
I will post a picture of the screws that you need to remove.