Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things. Philippians 4:8
When a person works full time many times it is easier to not rehash problems in life. You stay occupied so therefore do not think about things. I have heard many messages lately about keeping your mind focused. You have to be intentional about not thinking about stuff that simply drags you down. It could be worrying about finances. Perhaps it is wondering why a friend has rejected you. Maybe speculating about things. Perhaps just plain old worry.
If you have a habit of focusing on negative or worrying or wondering about things try getting up and first thing saying "Jesus today I give you my thoughts." Once you declare that do not start drifting into old habits. Make up your mind you will 'capture' wrong thoughts and turn them about to thoughts that lift and build up. Start saying out loud things like "Thanks for taking my concerns.Thanks for your joy. Thanks for peace only you can give. I choose to focus on things above and reject wrong thinking."
Now once you have accomplished those statements practice doing them. Open up the word of God and read a few Psalms and some of perhaps the book of John. I guarantee your thinking will improve. Before you know it you will be able to cast off wrong thinking.
PRAYER: Thanks Lord that you made me and you love me. You want me to have good thoughts. Help me live in the present and give me your strength to reject wrong thinking which is not from you. In Jesus' name. Amen.