You do still have sooo much to learn. On average I have found that it takes about 5 years in the OR before you are truly comfortable. It has a lot to do with the size of your OR and the acuity of cases. If you are in a large institution with teams you may feel comfortable performing your one service but will be totally overwhelmed in another. If you are in a smaller place you will see something you have never seen before. I think thats what keeps us hooked. A constantly changing environment and the looming trauma.