Immortality: Starting as a Bounty Hunter

As a time traveler, I have the ability to live forever. Is this reasonable? Hu Bugui traveled through time, but came to the Banpo era. As a useless college student in the new era, he had no ability to take care of himself. Just when he was about to commit suicide, a meteorite fell from the sky, and his body began to undergo subtle changes. "What, I'm immortal?" Soon he gave up the idea of committing suicide and prepared to make a big splash in the long history and leave his own legend in the history books! Of course, we have to start with the bounty hunter first, because at this time he is penniless and a real poor man...