i don't understand how life could be so unfair to just one person

From the title it might sound like i have victim mentality but i was born with so much deformation its insane. First; i have growth hormone deficiency that made my body stay at 10 years old forever.I stand at 4'9.Everyone thinks i'm a kid nobody ever takes me seriously. Then i have autism which made my life miserable.I had a terrible childhood because of this.Constantly mocked,made fun of bullied... And now in my adulthood i developed inferiority complex and extreme extreme social anxiety sometimes i can't even go to a convenience store. I can't do anything by myself.I'm incompetent and extremely dumb.I have no passion in life.Nothing really interests me. If i had only one of these above my life would be just fine but life decided to be ruthless to me.Life wouldve been better if each person could have only one disability.