I am 20 years old and I am currently living at home with my mum?

My mother acts like she has a borderline personality disorder. You might want to read a book on bi-polar disorder, you may find some solace, look on amazon. You have to remember mental illness is very selfish, like alcoholism. Your mother's behavior towards you is not personal, but I'm sure it still hurts. It doesn't sound like this is a healthy situation to be in. Continue to save money, there is not point in repeatedly bringing this up. You will just continue to be disappointed by her reactions to you. Your mother is unpredictable, and I know, it hurts for her to not be there for you,like other mothers are for their small and adult children, but she is incapable of being anything else. My Mom thinks I'm being rude when she actually is, but honestly, please read a book on it about other people's personal experiences. You will have "Aha" moments. It will help. No body can give you a detailed enough answer that will leave you satisfied. Look at reviews and pick something you can read on your lunch break. Also, you need some counseling to talk about this. Everybody needs this at times. Good luck with everything. Sorry you have to go through this.