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Your bracket looks a lot like our 32-119. Review its store page and let me know if this is what you were looking for.
We don't have a video on this specific bracket, no, but it's pretty straightforward. You just use screws to mount these to the back wall of the cabinet, just like the one you show in your photo.
I'm not sure what your first question is. I assume auto-correct got the best of you.
You should be able to install the sockets to the back wall, and then install the drawer tracks. Where exactly are you running into issues? These don't really take a lot of work. If you keep experiencing issues then there may be something else going on.