I hate being late

I think being late is extremely disrespectful, thats why i ALWAYS want to be at my friends house early when i visit them. Im supposed to be at my friends house at 10:10 am. Its currently 9:52 am and we drive 20 mins to her house. AND MY MOM IS STILL IN THE FUCKING HOUSE AND ISNT HURRYING AT ALL. I TOLD her we NEED to start driving at 9:30. She says okay. i sit down in the car at 9:31. she is nowhere to be found. MOVE YOUR BITCHASS TO THE CAR! My friends are starting to get mad at me cuz im ALWAYS LATE EVEN THOUGH ITS NOT MY FAULT CUZ THIS WOMAN CANT PLAN OMD. And everytime i tell her that we should be there ON TIME, she goes: „oh but your friends will survive if you come a few mins late, wont they?“. WELL BABES THATS NOT THE POINT DO YOU NOT HAVE BASIC HUMAN KNOWLEDGE ?!! AND NOW I HAVE TO EXPLAIN TO MY FRIENDS WHY IM LATE AGAIN LIKE A LITTLE IDIOT ALL BECAUSE SHE IS TOO FUCKING INCOMPETENT TO HURRY THE FUCK UP