Dear Christian Mentor, I am anxious. Does that mean I am not a strong Christian?

Dear Christian Mentor,

I am struggling with anxiety and worry. The Bible tells us in Philippians 4:6 not to be anxious about anything, but I always feel anxious. My anxiety makes me feel fearful, worried, and panicked. I often think of worst-case scenarios, which keep me up at night. As a result, I wonder if I am not a strong Christian or if I lack faith because of my anxiety. I feel like God might be disappointed in me because I struggle to trust Him.