Thank you so much for the comprehensive reply. You are right when you say that with 4-5 years of experience I know to some extent what good and bad code is. but

Thank you so much for the comprehensive reply. You are right when you say that with 4-5 years of experience I know to some extent what good and bad code is. but sometimes I think a lot and write the best code that i can, and later after some time i realize; by looking at some one else's code or by myself knowing a new feature of the language i am using, that i could have done it in a much better way .. that is much more beautiful. My problem is that if my code doesnt look like poetry to me, clean readable understandable i feel the need to improve it.