>>8095792Pain of such things will come and go in waves. Sometime you might think just going back to her is the only option, but if you overcome that low point, the subsequent low points will be shallower. It's not easy, granted, but necessary to power through.
Time is a great healer and keeping yourself busy helps. Sleeping on time also keeps the brain resilient. Relying on alcohol is pointless really, you waste a bunch of money and ruin your health. Once in a while you deserve a break, but careful to not make a habit out of it.
I've been going through a break up as well, albeit due to a different reason. Some days are better, some worse. Just make the best use of extra time that you have, invest in yourself. The structure of your daily routine will help you be grounded, just let it do it's thing, other things will fall in place.