I am retesting to try and get my School Bus drivers license. My question is this.?

When I was testing,my examiner said that I blocked the crosswalk with the bus. There was no pedestrians near or around the crosswalk. The examiner said that the crosswalk was before the stop sign,and she said I drove,without yielding,right up to the stop sign. She failed me for the road test portion of my exam...I was heartbroken. The examiner also said that I stopped a little after the stop sign line,and the front end of the school bus was too far p the stopping line. With her clip board and pen in hand,she said my turns were too wide,and I left my blinker on too long when turning and changing lanes. What do some of you Bus drivers,truck drivers,and fellow CDL drivers think of this? I test again tomorrow.