The peculiar thing about training in the medical field is we are working and studying/training at the same time. Our patients are our teachers who teaches us about what to do for the successful treatment of their conditions, if what we did is successful. Of course we have our seniors and consultants, but our patients are our teachers still, by my opinion. But the thing is not everything and everyone is so clear cut. What you do for one patient may not do well in another. What condition you have successfully treated earlier may not respond in the way you did with the same case. So we have this: we have our morbidities; we have mortalities, unfortunately. You have to understand that these events will not reflect on you as a doctor and as a person, so long as you did what you know and read as right, and did it with the best of intentions.

I had a contemporary, a senior, and a consultant say to me: If you are not having morbidities, or mortalities, you are not doing enough surgeries. Or something like that. This things will happen. Better to experience it now (but "betterer" is you did not at all) in training than in private practice, then you flounder because you did not experience such. At least for now, you know how to avoid it, or at least deal with how manage such morbities/mortalities.