If you truly believe there is no hope, why have you not killed yourself yet?
I had this mindset before (and I still sorta do). What kept me here was that small hope that maybe 5-6 years from now, my life wouldn't be so bad. I'd have a partner and friends. But I kept on wallowing in my misery and had made it a core part of my identity.
Then I realized there is no point in prolonging my suffering. I'd either need to kill myself or go into full throttle getting my life back together.
The world isn't fair. Yes, you never got a chance to develop social skills or make friends. Yes, people are unhelpful and will tell you to figure it out on your own. The world did you wrong, all that painful shit happened to you, and you have a right to grieve over it. Give yourself time to heal.
But then towards the future. You still have a long life ahead of you, and that life can be filled with joy. Why not go full throttle into making that joy real with as much effort as you can?