I have said this before and will say it again, most of the time it is not our responsibility to decide whether fearful thoughts or negative thoughts are realistic or not. It is our job to throw them in the trash, press into God, choose to trust Him and live in the present as children who completely rely on their Daddy. The devil would have us believe we have to process every bad thought, examine it to see if there's truth to it and figure out how things are going to be ok in light of that thought. This is a lie. God holds our tomorrows and will let us know what we need to know for today. And the thoughts God has toward us are "thoughts of peace, and to give us a future and a hope." (Jer. 29:11) Every thought from God given to us to process something we need to face will always have empowering grace attached to it and will always be filled with love and compassion. Any other kind of thought is trash for the trash can and poison to our souls.