They say " Practice makes perfect," but that's only true when it is good practice. So stay focused and play seriously. Quick and sloppy games will not help you improve. Consistent accurate play is what to aim for. It's best to practise with stronger players or
against someone just as good as you. Nobody gets better by beating up on easy opponents. They let you get away with inferior moves. You want a player who will see your errors and force you to be sharp.