Here’s a brief flip through of the doyald youngs book dangerous curves. I know that there is a lot of people that are debating whether or not to make the investment. The reason I made the investment in my career was a great decision. The amount of money that I will make back is greater than the cost.
So whatever it is you are hesitating to do with your career do it. There is not need to waste time as long as whatever you can do to improve is worth it. Then you want to make sure you have the desire to improve and get better.