Became a stepdad and it completely changed my identity
Never wanted kids, had a whole different life planned. Met my wife and suddenly I'm responsible for two teenagers. First year was brutal, felt like I lost myself. But over time something shifted. Now at 8 years in, these are my kids. The hardest part is that I can't take credit for raising them from babies, but also I don't have to deal with those chaotic early years. I miss my old independence but I gained something I didn't know I needed - real purpose. They call me Dad now without it being weird, which still gets me sometimes.
Two teenagers at once would've sent me into a tailspin, not gonna lie. But it sounds like you're finding your footing now, and that's what matters. The identity thing is real though, took me a while to stop feeling like I lost myself.