i want to change myself.. i dont know how to but i dont like the way i m.

Why do you feel like a loser?
What about you would you change?

And looking at your 'pic'. You're right. Being hurt rarely makes a person stronger when the pain wont let up. it only goes on to destroy who you are.

But you still have a decision to make. Do you want to be that person? you don't seem to care to be.

So be someone else. Who? I don't know.. but you need a healthy direction.
Life is complicated and don't fool yourself into thinking anyone has it any easier. They don't. Their issues are only different ones.

One thing to change your state of mind, is to stay away from other depressed people. They are often very welcoming but will drag you down with them. They will be a bad influence and lead you away from being something else you want to be.

Have you seen a counselor? Someone you can talk to?

If you feel you can't even hang out with good people you want to socialize with, maybe you can try to watch movies, shows and read books and magazines that feature people you think are interesting, do this long enough and then you'll slowly emulate and be inspired by them, even unwittingly perhaps.

Maybe try to learn how to dance through YouTube at first then take a class if you can?

As you know I'm not doing to well in my life as well.
I'm in my late 30s already, I'm too old but maybe since you're young there's a bit of hope for you.

If you truly want to change yourself, put yourself in a different situation. Hang out with the people who are like what you want to be. Do the things that the person you want to be would do. Start with this and you can change yourself.

Nobody can guide you but yourself. Be whoever you want. Keep doing what makes you feel good. It sounds dumb when I say it, but it's how it usually works