What are the most difficult and useful things people have to learn in their 20s?

Although I have written a similar answer What are 20 harsh life lessons everyone should learn in their 20s?, I want to add another perspective. Getting even with your skill set (Office Office) : Life begins at 40 but takes birth at 20. You shall get a sudden realization that all your tricks,skill set learned at college,school,from friends … Continue reading What are the most difficult and useful things people have to learn in their 20s?