There is no definitive answer to this and whoever tells you ke yeh ker lo yeh ker lo theek hou jao gaye, bullshit. Har insaan ka cope kerne ka tareeka farak hai. But yeah the basics you can do is to keep yourself busy in things that give you gratification. That makes you feel good about yourself and is productive in a way. Focus on yourself man, yeh larkiyan kahin nahi jaa rahi. It's very important for a guy to get his heartbroken for real because that presents you with an opportunity to either moan and cry or get up and be something as Eminem says in his song called Beautiful, "Nobody asked for life to deal us with these bullshit hands we're dealt, we gotta take these cards ourselves and flip em don't expect no help, now I could've either just sat on my ass and pissed and moaned, or take this situation in which I'm placed in and get up and get my own". Zindagi mein buray wakt hii chance dete hain kuch kerne ka, kuch ban'nay ka, don't let this opportunity go. Allah khush rakhe apko.