WE must create a galactic FEDERATION where all people are united to explore the mysterious infinite void of space.
Science Fiction may not be real, but we can make it real. Just a few decades ago, propulsively landing an orbital rocket back on Earth from space was purely science fiction, but, just some years ago, SpaceX made it a reality. They landed an orbital rocket traveling thousands of miles per hour back on Earth, after launching to space. We can make almost anything possible if we work hard enough.
Humanity will without a doubt expand to other planets, even to planets beyond our solar system. Mars is first on the list, but we will likely inhabit hundreds of other planets in the future. There are countless opportunities for humanity if all of these planets, with their billions of inhabitants (as well as the billions of people living in plain outer space), unite. A galactic federation with the right policies can unite humanity.
Humanity can't reach the stars if there is no humanity to do it. If we want to have a future full of wonders, you need to help us get there. Such a future won't come to us by itself. The only way you can directly help humanity get to this future is to aid in a STEM field, because STEM is the future of the galaxy. Being a useless "YouTuber", or an "Influencer" is not.