It's gone. My strength and my confidence is gone.

I have been in my profession for a very long time, and no one has ever indicated that I've done a poor job until...

I returned from vacation last week, only to find that another teacher moved my files into her folder, and later I was called into the office to learn that my teaching job was being changed from grade 6 (really I work with grade 6-8 this year) to 2nd grade. they did not ask, they just said this was what they had decided. I cried and stayed home the next day- I felt like I was being punnished.
Privately to the principal, I mentioned that perhaps another teacher who has a problem with me (we have had some difficulty- this year) was behind this.
Eventually they changed their mind, and I can keep my current position (working with older students)
An aside- I am afraid of working with younger students- as the age of little ones is about the age of my trauma history.
All is well I thought. Not so. That same teacher once again made me look bad in front a a parent, (lied) and portrayed me to the bosses as inept. I was so upset that I could barely speak and did nothing- or very little to stand up for myself. I just took it- like the stupid little girl I've worked so hard to reconsile with.
I am sad that people are so mean, and I am angry once again that I was a fu%#@*g wimp and let the woman railroad me. I am angry, sad and powerless. I should know better by now.
...and I did not even look to see what heading I was posting under- sorry it it is wrong.