Survival in a Broken World

What kind of world will we face after the world is broken? The world I just traveled through is broken. How should I survive? I'm waiting online very urgently. I'm afraid I won't be able to wait for a while. Who can answer me? Others are invincible through time travel. Why should I still struggle to survive? It's not fair. I want to find the guy who allows me to time travel and beat his lungs. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.