I have a mentor in the stock market. Having a mentor shortens your learning curve significantly. You can learn from their past mistakes and avoid a lot of trouble and time wasting. You get invaluable insights that you might not get from any books or courses out there.  Its very hard to find that one person who can genuinely guide you but I got lucky.

Data scientist

How important is having a mentor in today's fast-paced work environment? Have you had success as a mentor or mentee?

People who have mentors/are mentors, how has it worked out for you?