In habit, there is no decision-making involved, right? You just do it. So, habit is not the problem. The problem is that we are habituated to the wrong things. Habits should be where there is really only one right decision possible. In all those matters be fully habituated.
In fact, if you are not habituated in those matters, then it is a problem because you will create alternatives for yourself where there must be no alternatives. You will start thinking of things that should not be thought of. Those routes, those ways will open up in front of you that lead only to misery and hell.
Be habituated towards the Truth. Be habituated towards freedom. Be habituated towards keeping it simple and straight. Let these be your habits.