I’ve died and have been reborn more times than I can remember; that would only continue even if my body was rendered immortal. Sure, I’d like to live forever. I suspect that the ability our minds have to deal with the passage of time now would still be effective in maintaining sanity over centuries. There would be plenty of time to figure out how to make things work.
And if we didn’t have the basic needs of our bodies to worry about, we could focus all energy into improving things and making life more stable for the countless years to come.
Oh, I assumed that everyone would live forever. If it was just me, I guess it would still be good. Yeah. Think about how much the human race benefits from the wisdom of its elders that live only about 100 years or so. Even if I couldn’t find a way to help others become immortal like me, (I would try,) I could still potentially be an asset to humanity.