My girl left me. How do I move on.

Take advantage of the next 1-3 months post breakup as it serves as the best motivation fuel to make major positive life changes. Allow yourself if you want to ONE weekend of drinking your feelings away and bitching to your friends. This does not mean you will forget about someone in one weekend, but you cant allow yourself to fall into the pity pool or else you'd never leave. The time immediately after a breakup is crucial to begin good habits because you have experienced a major life change that allows you to assess yourself and you have the drive to do something about it. IMO dont listen to saps here or your friends saying 'you dodged a bullet bro' or 'it has nothing to do with you'. The reason you break up with someone and the reason that someone breaks up with you typically (not always) is because that person believes they can do better point blank period. Just like getting fired from a job, your ego will try to protect itself and point fingers. Use this moment instead to reflect on your behaviors and see where you can improve - and we all can improve. But do it not for her (she aint coming back and you shouldnt go after her) but for yourself. Also dont be the guy or girl that bitches about how evil their ex is all the time. Be indifferent to her, it's the best way to move on.

Things you need to do after a breakup:

• Delete any pictures of you two together
• Cut off from social media or at the very least take a major break from your social media
• Book a trip, a good one, give yourself something to look forward to. Hopefully you have another guy friend to go spend a week or two backpacking in Europe, South America, etc. Something better than a weekend in LA
• Goes without saying but hit gym. If you let fitness slip at all, go lift, cut fat, look good
• You should have more free time. So pick something new to get into - bonus points if it's social. Learn to surf, join a cycling group, join a professional org or mentoring program, rec sports team, whatever. Just be around people and do something
• Take a month or two for yourself, but do some fun dating around. DONT rush in and try to force a relationship to fill the hole in your heart. But some aimless casual dating to let you sample the market a bit wont hurt, and probably help you understand what you want better
• Cut back on any vices. Alcohol, staying up late, marijuana, other drugs, etc. Eat healthier as well
• If you can, pour yourself into work. Get in early, go with teammates on lunch, can be a good distraction. Will also say if you are truly heartbroken it may be hard to focus on work so your mileage may vary
• If you are like most men in a relationship, your probably get a little slobbier. Wore older , looser clothes. Wore more athleisure, casual stuff like t-shirts etc because you didnt have anyone else to impress. Spend some money and upgrade parts of your wardrobe if needed

Will stress one last time the timing of all of this and will once again use the getting fired from a job comp. You just had a life upheavel. If you wallow in pity for 6 weeks then you will be very hard presses to change that behavior longer term and just adopt more self destructive tendencies will still crying about her a year later. If you maintain the status quo then again you likely will be the same guy in half a year as you are now - if a girl you loved saying 'you aren't good enough for me' doesnt light a fire under your ass then what will. 

Breakups can be a blessing.