ADHD and dyslexia and speech issues - All of those can be serious struggles and require help from professionals to learn to manage/compensate.
For the ID, a doctor or a diagnostician did IQ testing and got a score below 70? If that’s the case, your city/ state/county may have an MHMR department that might be able to offer you services - help with therapies or job skills or accessing any funding that might be available.
See if your county has an MHMR office. If they ask, instead of giving those numbers, just tell them you were diagnosed with an intellectual disability. They may offer to put you on a waiting list that sounds ridiculous - like 12 years or something. Do, it! People move out of the county and drop off the list all the time. They may question your ID diagnosis because you seem very on top of things and you’re a good communicator. This is an situation where the speech issue may work in your favor. I know that sounds horrible, but sometimes you have to play the system.
Did you receive special ed services in school? If you did, they may have had a transition specialist who gave you paperwork to find services after graduation. I don’t know the details, I just hear it talked about in meetings. If you want to attend a community college or training program, there may be services available there too.