Stay safe, call 911 for a police report, and get a medical check right away....

https://wiki-club.win/index.php/Do_I_Need_to_Call_the_Police_After_a_Minor_Car_Accident_in_Texas%3F

Stay safe, call 911 for a police report, and get a medical check right away. Snap photos and gather witness info, but don’t discuss fault. Avoid giving recorded insurance statements and keep track of your filing deadlines. Texas law moves quickly.