First, move to safety and check for injuries. Call the police to get an...

https://spark-wiki.win/index.php/Understanding_Texas_Traffic_Safety:_How_TxDOT_Crash_Data_Impacts_Your_Personal_Injury_Claim

First, move to safety and check for injuries. Call the police to get an official report. Take photos of the scene and collect contact info from witnesses. Be careful what you say to the other driver and never admit fault