Sometimes when the linkage is out of adjustment it pulls on the parking pin and makes it hard to get out of park because of the tension it puts on the pin
In the engine compartment near the steering shaft there should be the linkage bar with a bolt on it! loosen that bolt! second photo
go under the jeep and put the trans in park on the side! first photo!
Now make sure the prndl (park, neutral ect.) selector is at park!
Now tighten down the bolt...