This uses a plugin and a footsteps asset pack, but those were free (at least when I got them :/) I made this video like a month or two ago, but I forgot how hard voice editing is. I then solved the problem by just not doing it :)
Instead, listen to some nice free music!
However, this is the reason why the cursor sometimes randomly pauses, I was going to give myself time to talk (although, as I found when voice editing, it was clearly not ENOUGH time).
I was also going to showcase adding sound to the footsteps, but I didn't really have any footstep sounds.
Maybe in the next video, I'll explain how to make it so every time the player takes the step, it makes an explosion :)