Pro tip, you don't want to rub things like that when trying to clean them off of your shirt or what not. Scrubbing around too hard is just going to spread it around and the heat in the water could speed up the process of the stain "setting" into the fabric, which can be more or less permanent, so you don't want it to be too warm while you're gently dabbing.
Alternatively you can just not give a shit and consider your stains battle scars because who are you trying to impress, your dog? Fun fact, having the know how and having the will to use it: completely separate things, I don't have the latter.