High School Loneliness ( Started in 5th grade to my now present junior year in highschool)?

Hi, I am sick of the same **** I keep getting year after year. I am a nice person who is very active in athletics including football and wrestling, I am ADHD and Dyslexic, I've pretty much outgrown my ADHD though and i have mild dyslexia, also I was once very outgoing with anyone I met. Since my 5th grade year to my junior year in high school, I have been so lonely and down that I hate every day of life now. I haven't had a friend since 5th grade. During my freshmen year in high school I was bullied as in 5th grade to 8th as well. I eventually became fed up with one of my bullies and got into a fist fight with him. I was expelled from that school. My sophomore year in highshcool was suppose to be the year that everything would change. I would be going to the school I had first picked to go to while I was in 8th grade. I had many former friends there and my two younger brother went there to. I soon became depressed during the end of the first semester and let my 3.66 GPA average slip to a 2.22 average. I failed all of my mid terms and final exams and joined the football team. I thought that if I played football, I might make some friends or gain some awareness of some of the players. I also thought that I might have the opportunity to become involved in a relationship with a girl since I have never had a girlfriend before. I already know that no matter what I do, my junior year and future is going to the same way. And to be be honest I done and don't even talk to anyone unless necessary now. I know Im a born loser, and that just that. I also know that about 10 different happy, worry free people are going to feel sorry for me and right some bullshit response to this. My response to those people is not to bother with me im just done.