Maybe you have hit your zenith, but there is no shame in that. It doesn't preclude you from accomplishing more tomorrow.
Medical intervention can be helpful short-term, but long-term you want to look at what satisfies you. Fast forward yourself to 55, and think to your self "Wow, I'm really impressed with myself that I did $x." And then get to doing $x.
Medical intervention can be helpful short-term, but long-term you want to look at what satisfies you. Fast forward yourself to 55, and think to your self "Wow, I'm really impressed with myself that I did $x." And then get to doing $x.