This, so much. You majored in philosophy, you know more about absurdism than I do. You also know there’s no such thing as “being ahead” or “being behind” in life, just being closer or further to your own values.

You’ve got an approximate 30-40 years of good cognition and physical ability left, and soon after you’ll die and nothing will have mattered anyway. “Existed safely until s/he died” is one possible path to take, but it sounds like you want permission to step out of it. Go for it, the world doesn’t care.