Promise yourself you won't worry about:
What might happen tomorrow
What happened years ago
What others think of you
Things you can't do anything about
Whether you're going to fail
What everybody else does
Dr. Kevin Leman, "Why Your Best Is Good Enough," page 214
Instead, read Philippians 4:4-7.
Then read it again.
Then read it again.
Let the Lord have your worries. He'll replace them with His peace.
You'll see.