The battle is in the mind. We are told to be transformed by the renewing of our minds. We were told to meditate on the word day and night, in Psalm 1.
there are so many great scripture only songs on YouTube. There are also so many channels that have scriptures for you to speak along with. Your mind cannot be filled with both the Scriptures and anxious thoughts about your health or anything.
I pray you will develop the habit of keeping your mind stayed on the word of the Lord. That is the answer. And not just the answer to your anxieties, by any means.