We're talking bigger picture than the day to day stuff here. We all made mistakes during intern year. Most programs know and understand that.
As long as you are in the majority of normal decent programs, don't worry about it.
Just in the back of your mind always think: Am I doing what's best to represent this institution and am I doing what's best for the patient.
If you falter on one of those things but don't oppose them (forget to get AM labs once or twice, repeatedly forget to wear your ID badge, etc), it's ok (Think 'I'm trying my best, but I faltered and didn't do it purposefully against what I should be doing'). If you do something that opposes them (inappropriate with patient, come to work drunk), then you're in for problems (Think, 'This actin specifically actively opposes what I'm supposed to be doing).