Parking Brake Wont stay down

When I engage my parking brake/emergency brake and push in it won't hold... Some times if I kick the parking brake up and push it down hard it will stay down but wont have a good hold.... I went up under the driver side door and tired to adjust it but it didn't do anything to help.. also took the release handle and messed around with it for a min but nothing... I never had to mess with a foot brake so any suggestions.... I have to get it inspected and thats the only thing I think that will hold it up.../// Thanks
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*****NVM I FOUND THE PROB THERE WAS A WIRE BLOCKING THE BRAKE FROM GOING ALL THE WAY DOWN////

Good work, thanks for the update!