Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. -Philippians 4:6
We all fail in this regard from time to time. Some maybe more often than that.
But anxiety and worrying are the opposite of faith in the truth that God has a solution on the other side of the issue you’re concerned about…that what you’re focusing on is part of a much larger plan.
So let go of your anxiety by diving deep into His word and His promises. Pray up everything in your heart to Him…the things you celebrate and the things that weigh on you. All of it is part of His plan and future for you.
From John Piper Ministries is an excellent devotional, called “Ammunition against anxiety:”
When I am anxious about decisions I have to make about the future, I battle unbelief with the promise, “I will instruct you and teach you in the way which you should go; I will counsel you with my eye upon you” (Psalm 32:8).