I'm sorry you're feeling this way and I feel this deeply for you because you're transitioning into adulthood during an exceptionally difficult time. It's even harder then when I graduated from high school in 1996. What I can say is that you've got youth on your side and plenty of potential.
May I ask about your skills and passions? Maybe with dedication and time you can parlay these skills into a career. When I graduated from college and the career that I had trained for did not work out, I had computer skills that I could fall back on. It was a long and hard crawl to make a living at and I've had better years and worse years. Right now, I'm underpaid but steadily employed in state government. I don't have much hope for advancement.
While nothing would make me happier then to be able to tell you it will be alright, alas I am unable because the future is and always has been uncertain But I can tell you that you have youth on your side. At 46, I'm at the age where age discrimination is a real thing