If you've tried talking with her and found it not to be helpful, I suggest that you get into family counseling with her. Not only will the counselor listen to your daughter and help her get on the right path but she will also help you learn how to communicate with your daughter.
I suggest that you read the book, How to talk so Kids will listen and how to listen so kids will talk by Edna Farber and Elaine Mazlish.
And/or google non violent communication. This program will also help you learn how to talk with your daughter in a manner that will make it easier for the two of you to understand each other.
How long have you tried each of these consequences? I suggest that you first, try to make the consequence fit the "crime." For example, if she skips school, you take her to school. So embarrassing for her. If you choose grounding then be consistent for several weeks time with grounding her.
For the bad attitude, send her to her room each and every time she's
disrespectful. She can come out of her room when she's able to apologize. Just send her to her room. She can, play music, watch TV, read, whatever she'd ordinarily do in her room on her own.
Sit down with her and draw up a list of rules and their consequences together. You may be surprised at how creative and hard on herself, she will be.
I suggest you talk with the school counselor. My granddaughter is in middle school. The school counselor said that this is the age during which kids social lives are more important. As a freshman your daughter is in a new social setting and may be having difficulty accepting responsibility. If you have definite expectations that you enforce without anger or frustration she may be able to settle down. I suggest that your daughter may be more normal than you think. Ask what the counselor sees and what you can expect. She can also give you help with finding a better way of communicating with your daughter.
Do not put her in a position to lie. If you know something to be true, tell her what you know. Do not ask her. Don't lecture. Give the consequence and once she's complied let go of the need to repeat the lecture about something that happened in the past. Each day is a new beginning.
Again, I suggest that family counseling would be most helpful.