To be honest, I tend to give out to much information - especially when I am having anxiety.

My advice is, look calm in your face while letting your anxiety out through tensing a leg muscle - something that can't be noticed.

Do what you are doing, thinking ahead of time what is a good answer.

Yes, I am taking a break from work right now - because I think this job is worth taking the time for.
Well, no, I am not working - couldn't be here if I was, haha.
I am off work until the 10th. However, if I get this job I may not be going back.
I begin my other job on Jan. 10th. I have worked there previously, and will be working at both jobs simultaneously - believe me. I can handle it.

Try to remember to focus on what they are saying. Keeping your mind on task. Try to answer fully, but not necessarily personally. They want to hire work you, not at home you. Distinguish between the two during answering.

Hope this gives you some food for thought. Best of luck!