Aspergers will never go away. You will have Aspergergers, for the rest of your life.
I know people who have Aspergers can go to College, and maybe University. I don't know why you didn't completely finish school. You are going to need a stable source of income, and it has to be good enough, for you to be able to financially support yourself.
Without having a higher education then you might not be able to have a good lifestyle.
You said you have enough knowledge, and what might that be?
You didn't say anything about saving money. You didn't say anything about where you want to live, and what do you want to live in. You didn't even say anything about basic life skills such as cooking, and cleaning, so I don't know how you will bee able to independently survive on your own.
You said you failed school (Graduated high school). Well what exactly did you fail?
Can you be more specific?
You graduating from high school means you passed.