I believe it is a bit of both. I have a high expectation of myself and haven't really failed before - I've been offered the job after all but a few interviews

I believe it is a bit of both. I have a high expectation of myself and haven't really failed before - I've been offered the job after all but a few interviews in the past. Then I decided I wanted to shoot higher and had phone screens at Amazon (1) and Google (2) - 2nd video interview. These rejections have skewed my view.