I failed my first time for rolling thru a stop sign as well. So did more than half the people I knew who had to drive the same route for their tests. The examiners pick intersections with stop signs set way back in order to fail people.

I have also been t-boned at an intersection, despite having right of way, looking both ways, and seeing the other car slow down. I got over it and got on with my life.

Stop using "depression" and "PTSD" as excuses for your lack of adulting skills. If you are that afraid to drive, move to a city with public transit so you won't have to drive.