What's the point of living? We're all just going to die anyway

Do you ever feel like what's the point of being alive? I feel like we're all going to die anyway and that there seems to be no time period that was an 'ideal' time to live. I can say that probably 4 or 5 people genuinely care about me. I've always struggled maybe not to the extent of those in third world countries, but I've always struggled. I have mild autism. I've always been developmentally behind those my own age. Tying shoes in grade 4, riding a bike without training wheels grade 7. I can't always tell if someone is two faced or if I can't trust them. I may speak and pour out my life and secrets to them but that doesn't mean I trust them. I watch movies and t.v. shows with best friends in them who have special moments and stick like glue. I watch on with sadness as I genuinely don't know what that feels like. I used to think I had a best friend but the other day when I asked her what is your genuine opinion of me and she said I honestly don't know who you are anymore. I've never been good at making friends, always been the weirdo loser kid in primary school. One girl in primary would work passed me and say, Ew it's ______ ______. It might be the implanon talking but I don't know much longer I can last here. I don't fit in here. I feel jealous of my sister who can click her fingers, make friends and even drink with them. I have no one to get drunk with. I honestly feel alone in this world. I also honestly feel like it's a miracle and a curse that I've lasted this long on Earth. I'm not the sharpest tool in the shed and they say natural selection takes over. Why didn't natural selection and survival of the fittest happen with me? I have no reason to be here. I'm not good at anything. I'm not coordinated, sporty, athletic, smart or even artistic. What does that leave? Pretty much nothing. I want to live a long, happy life and see my children and my grandchildren, but will I even get there? I want to be liked and I want to have friends and I want to be talented in at least one thing. I feel like a detriment to society. It's overpopulated anyway, what's one less person? I have no purpose here...