I have the same problems at work as well. I hate all that high school bs. My mother always tell me that my coworkers are just jealous. People do the things the do because they are jealous. If they are doing there jobs right they wouldn't have time to do all the eye rolling and stuff like that. When the time comes, they will feel the mistakes they have caused you.
At times, there are those moments were it is too much to handle, especially when they are all against you. They make fun of me and think of me as a weak person, but I know I get the job done and nothing else matters. You are doing your best, especially raising your daughter.