Hi there. First of all I think you have a very nice tattoo.
I can very much relate to the feelings you're going through as my mind went crazy when I had my back piece done a little more than a year ago. I was obsessed with it. It felt like it wasn't part of my body and I wanted it gone.
It took some time to get used to it and to accept it as part of me. My tattoo wasn't just an impulse decision, yet it felt like something too big, too dark, too weird on my body, I felt like i let down my family and kids and that I'm a freak.
Well, now, quite some time later I can tell you I got used to it and I like my tattoo very very much and I'm back to being me, the strong, confident me. Give it time. If you feel weird right now it's ok. You'll be better! Don't be hard on yourself and keep living your normal life :-).