First, reach safety and call 911. See a doctor right away, even if you feel...

https://www.expertlawfirm.com/what-to-do-after-a-car-accident-in-texas-a-step-by-step-legal-and-practical-guide/

First, reach safety and call 911. See a doctor right away, even if you feel fine. Snap photos of the scene and get witness info. Request the police report. Be careful what you tell insurance adjusters. Texas has strict claim deadlines, so act fast.