Coping strategies

I need to vent and I was also wondering if anyone has suggestions about coping with difficult coworkers (it's difficult on-site too).  I share office space with 5 other people.  The main room is small and then there is a smaller adjoining room where 2 other people sit.  I am involved with transcription QA and abstracting so need a quiet working environment.  My other coworkers are not MTs but respectful of me and each other understanding that I need to have quiet when I am listening, we all do tasks that require a good deal of concentration. We do our work and keep our visiting to a minimum.  Recently, a new temp was added to our work group and I have to say that the whole office has gone topsy-turvy - she hums and sings, adjusts her chair constantly (at one point she had 3 different chairs in a very small space), obsesses over minute details such as the clock being 2 minutes slow, yakks to herself, cracks her knuckles, gets in people's face when they are having phone conversations and can't seem to work quietly at her desk. I requested to come in early to get some quiet time but she beats me to the office and won't go home until everyone leaves.  I am being driven nuts and had a little blow up in the manager's office yesterday and of course this is my fault for not making the newcomer feel welcome.  She is temporarily placing her in another work group but I'm sure she'll be back, I think they are probably going to see my point.  I'm ready to quit - I'm 61 and wanted to try to stick it out a least one more year, preferably to 65.    I've tried ignoring this but it only made me more frustrated.  I'm not a chit-chatter, I'm there to work and I have a lot to do during the day, I definitely don't have time to babysit. Any thoughts? I need to work on my office survival skills.  It feels good to vent, TIA