A: I’m impressed that you want to fix your relationship instead of just going away angry.
I wish I had a better idea of what changed since you were small. I can only guess that your mother sees you on the brink of adulthood and is very anxious that you won’t be able to handle being out in the world on your own. Is it possible that she has doubled down in correcting you in order (in her mind) to get you ready to be on your own? Her tactics aren’t working. But her intentions just might be honorable.
You didn’t mention whether you have had a mature, honest talk with her about what has changed. Have you been able to approach her calmly, without anger, to talk about your relationship and your future? Such a conversation is likely to go better if you are able to approach it from a position of curiosity and concern, rather than upset and anger.
There is absolutely no reason to fight with her. Fighting only indicates to your mother that you are immature. Even if what she says invites you to fight, you don’t have to accept the invitation. If things start to get heated, end the conversation gracefully. Instead of getting mad, say something like, “I’ll have to think about what you said” or “Your perspective is important to me. I’ll think about it.” Then do think about it. Under her anger may be fear or anxiety and/or valid points. When you are calm and have thought it through, ask her if you can go back to the conversation.
In the meantime, do all you can to show yourself to be the mature, thoughtful and competent person you know yourself to be.
I do suggest you do some homework before having further discussions about where you will live next year. If finances are part of the problem, is there a way for you to get some financial help? Many schools have work-study jobs or employment opportunities to help with expenses. In addition, find out what support services are available for people with Aspergers. Come up with a financial plan as well as a plan for using services. Then present your plan to your folks. That will shift the conversation from being an argument to a mature conversation about how you can be successful living at school.
I wish you well.