Why does my mind keep overthinking even about small things—could Mercury in my chart be the cause?

Name: Ashnoor

Date of Birth: 3rd April 2000

Place of Birth: Jalandhar

Time of Birth: 6:30 PM

I want to start meditation, but my mind keeps making false assumptions. I feel restless and anxious. Maybe Mercury placement is behind this. Can astrology help me control my thoughts?