Search Results: make new friends online

So, I turn 18 in two weeks and I barely have any friends. It's been like this for seven- eight years. Kids in my age group cut me off after a few months, people online stop talking to me after a few months, I feel like I'm easily forgotten by people and people are quick to ditch me. Even when I make friends I typically think of the date or deadline they will stop talking to me and cut me out their life. For example I made a friend in my neighborhood who was supposed to go to my school, he told me we'd be friends but I thought that once he started making friends at our high school he'd probably ditch me and end our friendship to be with other people there. :/ we had a great time together and I always wondered if my feelings were normal or just depressing. I don't expect people to even like me anymore. Sometimes kids I was friends or talked with would disappear from school and never show up again. I can't see myself making new friends, having a boyfriend, having a normal life. I imagined myself getting pregnant then thinking of the guy abandoning me and me being a single mother. In 20 years I see myself being completely alone with no friends, little to no family, I'll be living alone and living my life as a loner with a boring, mediocre career that only pays enough for me live in a small one bedroom apartment with barely any social interaction with people being at home all day Watching YouTube videos I don't even see myself traveling or dating. I don't even see myself really happy... Is this normal? I see myself dying old, alone and thinking that it'll be a week or two before anyone notices that I'm gone. Is this normal or I'm I depressed?