Hood hinge problems

This is something that is REALLY hard to straighten out, and you would be miles ahead by replacing the hinges.
With them on the car there is no decent way to reverse the torque direction to straighten them out again.
Off the car it's a trial and error but they can be gotten close to normal, but they will always be soft and not nearly as rigid as they were.

The loose part you can figure out easily when they are accesible.