I felt this (take a walk detractors) when I was dressing up to work today. And there are moments when you feel proud of yourself. Go ahead and pat yourself. Be loud and its totally fine.
As much as you are continuously being critical about your abilities, it always helps (and recommended) to look at yourself in a mirror and see a reflection of success. Go down the memory lane and be proud of all that you achieved.
Yes, there is more to come and yes you will strive continuously to get there as best and fast as you can. But, today is your moment, today is where you live and its nice to have a smile – its feels (and does) good to be proud of what you are now.
Side Note: If you ever doubt the handsome part, just check with your Mother for a quick boost.