If you have only completed the quiz but have not started a subscription yet, no need to start over, simply click "View Your Blend" then "Looking to switch up your blend". From there, click the option to "Change quiz answers" and edit! :)
If you want to start fresh click on gainful.com/logout but you will need to use a different email address. If you want to use the same email address then just email us at email@example.com so that we can reset this for you!