Is it worth having kids?

I was diagnosed with Asperger's when I was a kid. Now I'm 20. I'm studying psychology in college because I'm too dumb to study science or engineering, I'm socially inept, everyone thinks I'm a freak including my friends, I've been turned down by every girl I've ever tried to connect with, and I embarrass myself whenever I talk to someone new. If I ever meet someone who wants to have kids with me, which I doubt will happen, I'm worried my kids will grow up to be like me or worse. What should I do? My dad and his dad both show symptoms of Asperger's and two of my cousins have more severe autistic spectrum disorders. I don't want to have a kid who will be unable to achieve the quality of life that they deserve, it's just not worth it for me or the kid. My brother's pretty much better than me in every way so my parents will still have grandkids.