I'm starting to think that my life is over and I don't want to live anymore. As of writing this I am a 23 year old woman with no qualifications or education. I have learning disabilities and my IQ is just 76. I struggle with things like talking, maths and spelling and I can't find a job.
When I was a kid I knew I was different. Things that were easy for the other kids to do took me ages to learn. Kids used to make fun of me because of the way I talked and in general I could fit in. As I got older my learning disabilities become more noticeable. I was diagnosed with ADHD and low intelligence and therefore struggled academically but my dad refused to put me in a special education program because he thought it would be an embarrassment. School was very hard for me. I would work my ass off just to get C's and B's and my father was very abusive. He would expect me to do well in school and if I didn't he would beat and punish me. I had to repeat the 7th and 9th grade but I eventually graduated but very poor grades and no qualifications. When I was around 15-18 started to do drugs like weed and alcohol just to cope.
I left my parents house when I was 19 and went to live with a friend. I have very little money as I'm addicted to drugs and my lack of education makes getting a job practically impossible. I don't see my life going anywhere and when I'm not on drugs I'm miserable. My brothers and sisters have done so much better then me and it makes me so jealous, angry and ashamed. I know this may sound cringe but I honestly can't do this anymore.
EDIT: I now have a job at Burger King as a cook. It's not glamorous but it's some money.
Well, you're both right. IQ means something, but it's only a predictor for outcomes. Many high-IQ people have led very mediocre lives and many low-IQ people have had very successful lives. Certainly, a high IQ can make life easier for you, as can being born in a prosperous country, having a wealthy family, knowing the right people, or getting lucky. The other half of that equation is hard work.
From what you've said, you don't have good family connections, high IQ or know the right people. You haven't said where you live. There may be resources there to help you, or not. Either way, accessing those resources or getting ahead without them will be hard work. If you decide to go down that path, there will be pretty menial jobs, long hours, and not much money. There will be a lot of hard work in your down time to see what you can do to improve your abilities so you can improve your prospects in the future. Likely you will find none of this fun. There's no guarantee it will succeed. But, like with many people, those are typically the only options before you to get someplace better.