Burned out – how to find motivation again?

I am roughly six years into my career (EU based). I studied software engineering/computer at university. I have a mix of startup and corporate experience and managed to do well the past couple of years earning EUR 200k/year which is more than double the average for senior engineers in my area. At some point, the money just made things more stressful. I didn't feel like I could keep up the same pace as others. I just resigned from my current job due to fatigue and having no love left for working. I have a decent amount of savings (a few years worth of living). I feel like I've never truly been a great engineer - always the worst engineer on the team. I've managed to rise quickly due to being good at hiring/recruiting engineers, team building, and interpersonal skills / org work. I feel like I'm not particularly "talented" as an engineer and my talents are more in the domain of people coordination/mentoring/product/org work. I'm constantly stuck between wanting to become the engineer I always wanted to be and moving more into the domain I have natural talents in. I'm probably going to give myself a runway of a year to figure out what I want to do. I'm considering trying to join some open-source projects but unsure where to start. Has anyone ever been in a similar situation and found a way through the maze?