As the mom of a 21 year old ADD daughter, I can sympathize with your mom and you. My daughter has been home from school for the last week, and for the most part, I love to have her home. BUT, her "tantrums", swearing, and all that you describe ARE tiring. My husband can has ADD too, and I have a 10 year old, so I often feel like the only adult.
My daughter and I can be having a perfectly lovely time, and then she suddenly gets irritated with something and blurts out inappropriate comments or gets very ornery. I find it especially upsetting when I am trying to do something nice for her or with her and then she spoils it that way. She can blow it off and forget it, but my feelings are hurt, or it has a lasting impression on my younger daughter. She is coming home in December to live for at least a year, and I am worried about exactly what you describe. I love her more than anything, but she is not the easiest person to live with. I think she prefers to live on her own too, but finances make it rough until she can finish school. I do notice a difference when she doesn't take her Adderall. Are you a student? Can you move out?
You need a good spanking !!I can remember feeling so sad when I would get home from school and be so excited to tell mum all about my day but she would frown, tell me to be quiet and then ask my brother (who is an extreme introvert) how his day was and what he'd done.
Apparantly I never gave him the chance to talk and was even blamed for his speech delay
I dont think it's we crave attention so much as we crave companionship and and a person who will just talk what comes into their minds like we do.
I luckily have a friend like this and he doesn't get annoyed when the conversation goes off on a tangent. He finds my way of conversing interesting.
Oh, and the Flylady is well worth looking at 
ScattySarah -
I think that I have sometimes blamed other people because it's much less painful than admitting my own problems. Having add is really hard. However, I have found that the less I blame others, the better my life actually gets.
Even though you may really want to move out of the house, maybe you also really aren't ready yet. It's ok not to be ready and to need other people. I don't think you should force yourself out, then learn how hard it is and fall on your face if you don't have to do so. (It sounds like you already know that it's really hard.)
However, I think that sometimes in my life I have viewed myself as having add and therefore almost excusing myself when (with some things) I really could have done better. I think you owe it to yourself to really try to do better with your Mum and with others. Then, if you make a mistake be grateful that you're loved and try again. Just my opinion.
Are you getting any treatment ?
I am 20. I live with my Mum. She says I am wearing to live with. I have tantrums quite often, and as I am so indecisive I ask her advice all the time. She says I am always in her face. I scream if my top is not ready to wear, or if someone delays me anymore. I am never organised, I forget everything then blame it on other people, or just shout and cry until to my Mum.
She says I am wearing, her friend stayed with us and said I am wearing too. I feel like I don't want to live there when I think about it. It's embarrassing. I like to tell her about my day, or my problems but I think I just talk too much! I am not sure what to do. Should I keep my thoughts to myself, should I just get on with my life and not moan at others or have tantrums. Help! I make my Mum tired, I think I make everyone tired. I think maybe I crave attention, I tell everyone my business. I can't explain it. Why can I not be calm, organised and not have a temper!! xx
Cymbalta (an anti-depressant) has helped me tremendously for about a year with my "tantrums" it also helps me keep some of my outburts of too much information to myself- Doesn't help at all with my ADD disorganized s**t, but at least I don't really care that much anymore--There is a plus side to apathy I guess!It's hard living with your parents--Try to vent here instead of to your mom, or write in a journal. I don't have any advice on organization as I have always been and am a complete mess!