I sure hope I am. I kinda like this question because it makes me evaluate my life and who I am.
I once went through a phase where I would let people walk all over me --basically, I was too nice. Then I went into this "stay where you are, don't touch me, I just want to be left alone" phase. That one was when I was just generally avoided people and lashed out to anyone I felt was threatening what little sanity I had left.
And now, I somehow achieved the happy medium between the two: I'll be your sweetest, most caring best friend. However; I know when to push back if/when I feel someone is "attacking" me in any way, shape, or form.