first person camera and third person camera.

Hi, I’m having some problems with the camera in first person, whenever I turn the camera with the character stopped the camera ends up going through the mesh, I tried to disable and activate pawn rotation but the third person view ends up rotating along with the camera too . then I would like to know if it is possible:

1: I want the character not to move together in the third person.
2: and in the camera in first person, that he rotates together or that he does not cross the mesh if he looks back.
(I made a video demonstrating the problem)

Sorry for my bad English …