I'd be both terrified and excited at the same time. It's always been my dream to explore the vast unknown that is the universe itself, even if I was tied to a specific mission, but I get to live my dream still. I'd find more Rockys out there and befriend them. Maybe I wouldn't want to go back to Earth like he did, too. However, it's also terrifying because you are practically (and technically prior to meeting other sentient beings) alone in a place you're completely unfamiliar with, light years away from where your home is supposed to be. But it's exciting.