Ships are notoriously slow to turn. It requires planned deliberate actions to succeed. While it does take time, with a bit of patience and maintaining the set course, it will get there.
Life can be that ship. You choose to change a bad habit or situation that has been with you for an extended period while, and then when you begin to change the direction, it seems to take a long time to get there. As with a ship, it is not a quick 180° but instead follows a gentle arcing turn before coming to the point you are navigating toward your desired direction.
When you persevere to that new path and finally get your ship on course and remain resolute on the new destination, it will take equal effort to have you go back in the wrong direction.
Persevere. Strange how that turns out.