Stay safe and call 911 for a police report. Get checked by a doctor right away....

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

Stay safe and call 911 for a police report. Get checked by a doctor right away. Document everything with photos and witness names. Keep your statements brief and avoid admitting fault. Be wary of insurance companies and watch Texas deadlines.