Driver's door adjustment

[Markedz]

Hi all, I have been combing all of the older posts looking for what adjustment needs to be made to the driver's door on a 1970 Chevy C20 so that it will lock without having to push on the door. Does anyone have any experience with what needs to be done? I have had that strike in more positions than a yoga instructor and with no results. All of the previous posts have no definitive solutions. Any help would be appreciated, thanks.