I don't listen like normal people.
What do you think is the reason for that?
People treat me like I'm a question-answering machine, and expect me to respond instantaneously to questions
Even if people are being annoying, it's still wrong not to listen to them.  They might respect your advice, and that is why they keep coming to you.  Try to ask questions in return, to let them know that you have thoughts and feelings as well.
I don't care what you say,
I am sorry if I came off brash. But if you ignore people they might find that rude.  You can tell them how you feel annoyed and used just like you told me.