I agree Elfy, it is hugely refreshing to see you have taken note of what others have said and are prepared to do some work to change your thought patterns.
I don't know what your childhood was like, but attachment issues are very common, and given time, you will learn to manage these. To be honest, every single person I know adapts to which ever environment they are in, we all do it, the person I am at work, is not the same as the one at home, I am differnt with my friends than I am with the kids that I work with, we all adapt.
Sometimes, we feel we are different to others, but to be honest, we are more similar than different, just everyone, and I mean everyone puts on a mask at times.
So, take the pressure of yourself that you have put on, relax a little, and you will find things much easier.
Take care Elfy