You gotta start small and grow from there. It sounds like your starting from square one or two. First things first, you should go into training mode and learn your characters moves on at least a very basic level. The goal is to eventually get to the point where everything you do in a fight is something you wanted to do. Start with learning some small universal combo for your characters and play a couple of matches with trying to pull those off. Play a couple of games where you dont allow yourself to super dash outside of combos, this will force you to experience the game without it and you'll see parts of the match in which super dashing would've been a good idea and where it would've gotten you hit.