2000 Buick Lesabre body & structure problems

As I was driving my buick lesabre 2000 my windows lock up on me it was a very hot summer so the electrical windows with no go up and down. The engine is bad. 1490000 miles. Electrical system is problems. The car wiring is loose and can be a dangerous. I tried to pull window down and repair its manually frozen with no power. My seat are uncomfortable with hard iron wire.

The upper dashboard has separated from the car as it is raised from the left corner to the middle of the dashboard, at the front of the dashboard closest to the windshield. In some places it is over 6 inches raised. It continues to worsen, moving over to the right side of the dash closer to the passenger airbag. I am concerned that this might cause the passenger airbag to go off by mistake. It has also reached the height where driver frontal vision is beginning to be slightly impaired because of this defect.