I Ask, You Answer

The idea is to give you a chance to share your knowledge with fellow internet users— and to give you the opportunity to see what your fellow readers are doing! This question is :Knowing what you know today, what advice would you offer to your younger self 5, 10, or 20 0r 40 years ago? or say you are as brilliant as you are now 20 years ago,what will you have been doing? Let us know your answer in the comments.