Though, not one of the oldest editors for Wikimedia and also not one with the most contributions, but "dedication", that's what I call it.
My journey with Wikimedia started with Google Code-In 2015 and I call that turning point of my life.
Being a mathematics geek, we call "turning point" where the curve takes its turn, similarly, GCI took me to the organization where I always wanted to flourish all my knowledge and skills.
I'm still a learner and hope to contribute more and more to Wikimedia in any way or other. Check me on Meta