this is the ebb flow of learning
bad habits are relative
you have bad habits your aren't even aware of
every one does.
think of practice and playing as two different modes
practice = conscious focus on what your hands are doing; and is all about refining what you are doing
playing = just trusting what your body can currently do.
When a child plays they're aware of what they're doing; but they're not striving to optimize those actions... they're just running, jumping... whatever.. They're playing.