Say this prayer: 'Jesus, Friend of a lonely heart, Thou art my Haven; Thou art my Peace. Thou art my Salvation, Thou art my Serenity in moments of struggle and amidst an ocean of doubts. Thou art the Bright Ray that Lights up the Path of my life. Thou art everything to a lonely soul. Thou Understand the soul even though it remains silent. Thou Know our weaknesses and, like a Good Physician, Thou Comfort and Heal, Sparing us sufferings - Expert that Thou art. Amen.
Isaiah 26:3, "Thou wilt keep him in perfect peace whose mind is stayed on Thee because he trust in Thee."
When you could not pay the bills, and could not sleep, read Philippians 4:8 and tell yourself that God would not tell you to control your thoughts unless you were able to. This would calm your mind.
Try to help others trust God too. This can open your own heart for Him as you make some efforts for others.
Trust will grow overtime.
Jesus said in John 14:27, "Let not your heart be troubled, neither let it be afraid." It is your responsibility to control your thoughts and not be troubled.