I was tested as a kid with a 140 IQ but did my best to get that down to average levels with pot as a teenager. Every report card "... has a lot of potential if they applied themself."
Sadly, I didn't cure cancer. I got really into cooking and then computers, slowly realizing that while I might be smart on those tests, I am not really emotionally intelligent or particularly good at getting my crap together to make things happen.
Life kind of carried me along. I did lots of cool stuff but made major life decisions on a whim.
Everything changed when I met my wife (we weren't married before I met her, that happened later) and combined my abilities with hers. I finally feel like I have a place in the world and know what I'm going to be doing a week, month, or year from now with some certainty. Feels good.