I feel lonely 24/7

I'm a 24 year old male who's never even had a girlfriend. I feel like I'm the only person who's always alone. I'm not sure if others feel the way I do, I feel incredibly lonely 24/7. I go about my day as normal, talk to people, do my job, watch Netflix, etc, but nothing seems to make me feel like I have connection with others. I'm pretty sure I'm on the autism spectrum and have depression on top of that. I'm pretty sure i'm going to end up being alone until I die, I just don't see it going any other way.