My 12 year old daughter always seems annoyed or aggravated?

All girls go through this. It's just a stage, it will p. Just try to be there for her. Buy her things she wants, but don't spoil her. If she is crying and upset, put your arm around her and comfort her, but don't ask questions about it. You can ask "Do you want to talk about it?" and if she says no, then drop it and just try to make her feel better. Just be there for her, but don't intrude on her. Give her space. She will cheer up eventually, and then open up to you more. :)