Loneliness

Hello, I am a 27 year old female, I was diagnosed with ASD around 2 years ago. I wanted to see if anyone else had experienced extreme feelings of loneliness? I work from home (where I live with my parents) but I have friends I see quite regularly and a sister I talk to either over the phone or in person every day. I just can’t stand being on my own, it feels really uncomfortable for me and males me feel like I am a loser. However, when I am with people or in a busy place I can get overwhelmed and exhausted. I just wondered if anyone else experienced this or has any advice? 

Thank you!