Need A New Life

I need to start a new life.. I need to find a way to get over my ex, stop getting heart broken by the new girls that come into his life that I see on fb that are exactly how I always imagined the structure to be, of the kind of girl he wanted to be with. I need to listen to all the old songs that remind me of him and think about new things, think about the living moment, the here and now. I need to stop going to the gym in aim of the body he'd liked me to have had. I need to laugh at all the shit I did where I fucked up, all the things I need to change about myself and say 'it was an experience'. I need to focus on what I want to enhance, and let go of all the rest.
They say wisdom comes from experience, so I guess all the hardship and mistakes will go to a good cause in the end; I will become wiser and stronger.
I need to dance because I adore dancing, and not worry how I'm doing it or who is seeing me do it. I need to talk to people that I want to be friends with, not expect them to befriend me. I need to get out of my shell. I need to experience most of life's experiences.
I'm thinking of getting my ears pierced.. but the decision is still rocky.
I need to go to bed and be happy that I am alive and that I have myself, if not anybody else.
I need to remember, my ex and I as being the past, great for what it was but now it is over.
I need to remember that we both agreed that breaking up was the best for both of us. I need to remember that he did love my body, he didn't want to be with anyone else. I was the one in the fault, I have been the one who has needed to change and appreciate somebody when I am with them, and not to focus on other people.
All I get is my karma. I will embrace all the bad shit that happens, but I want a new life away from the past at the same time.
Deleting and blocking everyone that has a connection to him is my first step. Perhaps I am 'running away', what else can I do?