What do you use to Edit and Record???

I've realized that recording within game is not good enough, so I just installed OBS Studio. However, I'm fairly blank when it comes to using it. The guides I find online focus on streaming, and I'm only interested in recording. Where can I find directions? Not even sure how to connect OBS to my game... How can I import TS4 screen into OBS?
EDIT: Found a tutorial on YT, problem solved. Still not finding the better settings though, so maybe I can't get a good result with OBS because my vid card is integrated.