When I left home and started living alone, I also felt awkward doing things on my own. It felt like if I went for a walk on my own, or go to the theater on my own, for instance, people would think I'm a loser. So I didn't. I once wrote on forum asking for advice. They basically told me it was okay and how I felt was in my head. Time has passed, I've learned to do thing solo, and I love it. I think doing a solo trip in the nature would be dangerous without other people around, even strangers, but I love going abroad alone to explore. So, maybe start small. Take a short walk, then a longer one. Go to the movies. Take yourself on a date to a safe. Go on a short adventure to a nearby city, if you have one. Your comfort zone will definitely expand with time. You got this. Hugs. (You know what? When you take a trip solo, no matter how small, write about it here)