And since we have the same spirit of faith, according to what is written, “I believed and therefore I spoke,” we also believe and therefore speak, 2 Corinthians 4:13 (NKJV)
Brood on 2 Corinthians 4:13 by praying in the Spirit while holding that Bible verse in mind.
Also, repeat these meditatively throughout the day:
I AM WISE, AND MY TONGUE BRINGS HEALING. I SPEAK LIFE BY THE POWER OF THE HOLY SPIRIT. I OPEN MY MOUTH WITH WISDOM.