If I don't love my mum, should I tell her?

Since I've moved out of my parents home and I have emotional breathing space, I find myself in a position where I can choose my relationships.

I've realised that to a large extent my mother has emotionally abused me, I won't go into detail, but the essence of it is that both my parents had a hard life, they are emotionally detached, and my mother hasn't been able to show me love in anyway except by trying to control my life so that there is a 'good' outcome. -when I deviate from the 'good' path much guilt creating rage would follow.

I'm now 23 and have fully disappointed my parents by throwing away the opportunity to get a good degree. My parents try to keep the relationship going, but it's empty and soul-less. And though I lived under their roof for 20 years, they don't know me and I don't know them. Emotionally distant- I only realise this now that I am getting in touch with my emotions that I have cut myself from for so long.

I can take care of myself, I don't need them, I don't love them. Is it wrong for me to cut the string and get on with my own life? I feel like if I can fully accept that I have an undesirable relationship with my mother to the point I am willing to cut it loose, I can open a new chapter and finally make an attempt at building healthy relationships with other people.

(As a guy with a dominant mother, you can see she is much more of concern to me than my father)