In the long run, time, family and good friends. For right now, find some activity that you can concentrate on that makes you feel good. It might be studies or work. One good suggestion someone gave to me is to find somebody that needs help - and help them. It can be a friend or somebody you don't know through a volunteer service. It has a distinct advantage over alcohol (a remedy used by too many) in that there's no hangover the next morning. It's easy to give this advice - I know it's much harder to take it.

It takes time. Give yourself time to grieve over the person you have lost. One day you'll wake up and there will be no more sadness. You might want to go out with your girlfriends or buy a new outfit and get an entirely different hair cut. Meanwhile try to eat as healthily as possible and don't forget to to exercise.

All the above answers are good. i think that "Time is a great Healer".

I make a broken-hearted person make comfortable and have him some good advise that such things happens and convince to move on(life goes on)and make him/her feel better until his/her broken heart heals.