Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God's will is -- his good, pleasing and perfect will.
Patterns can be dangerous if you cannot figure out when they are no longer good for you. If you find yourself making the same mistakes or not moving ahead towards your goals, chances are, your pattern has become stale. In order to change the pattern, you must change your mind set and then force everything else in you to change towards the direction your new mind is going. You'll notice the immediate difference when you don't feel the same level of stress your "old you" once held. Today, it's ok to change your mind!