As a general manager, I own specific business goals and outcomes that I need to achieve, and am responsible for on an organization level. Those goals are very specific and measurable, so I always know where I stand on them. As a team leader, I measure success through my team's happiness, proficiency, ability to grow their careers, and our ability to scale the team (e.g. we can quickly and effectively onboard new team members and set them up for success). As a product manager, I tie my own evaluation of success to value I deliver to my customers (measured both qualitatively and quantitatively) and to learning - I love to learn as most product people do, and how much have I learned and whether I have gotten a better as a PM, teammate, team leader and general manager is the lens I see my succes thorugh. Those success measurements have been fairly consistent over time, but I started practicing them in "chunks" - first the PM set when I was an individual PM, then the leader one when I started managing a team, then the GM one when I started running a business unit.