Our thoughts can get us into so much trouble when we don't give God permission to control them.This is especially true when we let our mind wander to the worse case scenarios. That's what i call "borrowing trouble" & really, why would we want to do that? I don't know, but as human beings, it's pretty easy to do.
But be aware! Satan is a great manipulator & he uses fear to fill us with deep unrest.
"Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is lovely, whatever is admirable - if anything is excellent or praise worthy - think about such things."
Philippians 4:8 (NIV)
Ask God to fill your thoughts with things that are true, noble, right, pure, lovely, admirable, excellent, & praise worthy. What you feel in your mind will determine what you think. When feelings of hopelessness, worthlessness, or despair come into your thoughts, chase them away with the truth of your situation - which you will find through prayer & God's Word. After all, He made us with love & that's excellent & definitely praise worthy!