Stay calm and move to safety. See a doctor immediately, even if you feel fine....

https://weekly-wiki.win/index.php/What_Should_I_Do_if_the_Accident_Happened_During_My_Commute%3F

Stay calm and move to safety. See a doctor immediately, even if you feel fine. Call the police for a report. Take photos and get witness info. Don’t admit fault or sign insurance papers early. Texas deadlines matter, so act quickly.