We should never deal with a negative thought in the way it attacks us. The enemy would seek to use that thought to occupy our attention and bring us low. In Christ we get to take that thought captive and replace it with a better one. This is what we call renewing of the mind. Battling against a negative thought does not renew our mind. It can only be redeemed by receiving the mind of Christ and thinking the way that He would, now that He is in our life circumstances.
(from Radical Perceptions)