I'm thinking of letting people walk all over me and I don't even care anymore.
What's the reason you want to let people walk all over you?
I was hurt many times and I had enough, I don't want to get hurt again.
Even if you've been hurt a bunch you shouldn't be letting people walk all over you. The more that you let people walk over you the more people will take advantage of you.
That's exactly what I want.
Letting people walk all over you and take advantage of you isn't going to keep you from getting hurt again. If you stand up for yourself people will know that they shouldn't treat you poorly, and you'll end up being hurt less.