My old college roommate just took his startup public. It now has a market cap of 2.81B. My childhood friend teaches a medical device class at Stanford and has b

My old college roommate just took his startup public. It now has a market cap of 2.81B. My childhood friend teaches a medical device class at Stanford and has been a part of several successful startups. They're both doing quite well for themselves, according to some metrics. But in the end, I don't think you can't let this stuff drive you. Gotta live your own life the way you think is right according to how you measure success. And success metrics bound to external factors tend to sap happiness in the end rather than drive it.