Start by checking if everyone is safe. Move your car out of traffic if...

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

Start by checking if everyone is safe. Move your car out of traffic if possible. Always get a medical checkup immediately, even if you feel fine. Call the police to get an official report. Take photos of the scene and grab contact info from witnesses