'Beloved, I pray that in all respects you may prosper and be in good health, just as your SOUL prospers.' [3 John 2]
'For as he THINKS within himself, so he is.' [Proverbs 23:7]
You become what you think. This is a Bible truth, one of the Word's revelation as to how things really work.
The other is this: you can have what you say. Guess what?
"The good man out of the good treasure of his heart brings forth what is good; and the evil man out of the evil treasure brings forth what is evil; for his MOUTH SPEAKS from that which fills his heart." [Luke 6:45]
You think before you speak, good or bad.
So change your thoughts. Think the end from the beginning. Think healed, think rich, think angels protecting you and your family. Think joy, think from the right hand of God in Christ. Think completely delivered from all fears, all afflictions, all troubles.
When you catch yourself thinking bad stuff, beware. If it's contrary to the Word, such as 'I'll never get through this, I don't know what to do, there's no way out...' know that those are not God thoughts and change your thoughts.
Renew your mind...
'And do not be conformed to this world, but be transformed by the renewing of your mind, so that you may prove what the will of God is, that which is good and acceptable and perfect.' [Romans 12:2]
'Finally, brethren, whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things.' [Philippians 4:8]
Just do it.