You are so very early in this. If you read all threads, to a T, we have all felt like this. It is normal.
When we decide to stand (and stop standing, another story), we define our deal breakers, our boundaries and what we will accept. Sometimes these change, sometimes they don't, but they are ours to do with what we must.
If you honestly feel like a doormat, then the time has come to change something. But if the comment is out of frustration and out of what the societal expectations of your behaviour should be, then you have to think a bit more, Go a bit deeper.
Everytime I thought "Aha!! I got it, look it me?" Bam! Something else happened that caused me to look a little harder at myself and what I was feeling.
You still got a lot of anger going on and you are turning it into frustration and despair. What is your anger really?
