Give me one good example of how D&D shaped your life. Not "oh i made close friends", that doesn't have to do with the game thats just spending time with friends. You could have played sports or done something else.
Something specific to D&D that enriched your life.
When I was a younger Ark, I was bullied frequently, and I consequently became a sad, shy, and rather withdrawn person. I had few friends at school, and my relationship with my parents was always rather poor (and still is).
But none of that mattered when I played RPGs. Because there, I wasn't Ark the lazy, shy, nerdy dude, I was a badass Great Weapon Fighter or whatever (Incidentally, I've recreated that Great Weapon Fighter as a 2H Cyclone Duelist in Path of Exile, and he's my avatar here!). And sure, it may sound stupid and juvenile. Hell, looking back,
I think it's stupid and juvenile. But I'm 23-year-old Ark. To 13-year old Ark, it was a safe place where I could grow, explore, and flourish without judgment or reproach. And that meant the world to a young boy.
You want specifics? Ok. There was a game I played called Knights of the Old Republic. I'm sure you've heard of it, as it is one of the most celebrated video games of all time. It's D&D cut-and-pasted into the Star Wars universe, complete with Strength/Dex/Con/etc, saving throws, d20, and all those mechanics. The first time I played that game was in 8th grade. I didn't really know much of what I was doing (now that I look back), but I had fun nonetheless.
Since then, and over the years, I've revisited that game many times, playing as a different class, a different strategy, in each run. Over time, I learned more and more about it, and I slowly mastered the game to a point that 13-year-old Ark didn't think was possible. Back then, I just played the game on Easy and had a good time with a few buddies. But the most recent time I played it was during Biochemistry/Genetics in the Fall. In that run, I played it not only on Hard, but downloaded modifications to enhance the difficulty of the final boss. Without any guidance, I optimized a Lightside Soldier/Guardian that I would use against him. I played through the game, and it worked!
I don't really play video games because I want to destroy things. I like to create something, be it a character, a city, a civilization, etc. And this was the actualization of all of that: I had, by myself, created something that conquered the most difficult challenge in the game.
In any case, has anyone ever told you to read and reread a classic book, because the book doesn't change, but you do? Well, this is just like that. KOTOR remained unchanged (and I know D&D probably has a different edition from when I used to play it, but the core mechanics are the same), but I didn't. It represents not only a safe place I could have fun in, but also my growth into the person I am today.