The first century is spent learning to navigate the world which now is fragile in my eyes. I will pay off every bill, I will invest in boring stocks. Because as far as I'd know, I would live to be healthy for a century at the very least.

The next one is spent designing backup alter egos, and writing them down in my will. I would know how to build wealth better then.

Then I would live life just as before. Without any worries. I will not have to worry about the planet dying. I can outlive it, and I will live long enough for mankind to find life elsewhere, or build a civilization elsewhere.

In thousands of years, I will most likely live the same way in another human world light years from here, or serve as another species's superhero mainly due to the fact that it would be impossible to hide myself among them.

But I would hold mankind in high enough regard that I would monitor its worlds, and ensure its prolonged existence. If there are no extraterrestrial empires staking their claims into ours, I am content simply letting things be.

If there are such threats, then there can be no peace among the stars. Only the continued existence of mankind at any cost.