First, get to safety. Check for injuries and call the police for a report....

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

First, get to safety. Check for injuries and call the police for a report. Photograph everything and grab witness info. Keep your statements simple and don’t admit fault. Be wary of insurance calls. Texas law has a strict two-year deadline.