Get out and about and see friends, not being a cunt here but even get back on the bike if that's what will help you move on. The times when i am on my own i've kept busy.. I went on a mad one the first couple of months with women... and pissed quite a few off because i don't want another relationship... and i've since calmed down the last month or 2
When i split with my girlfriend of 7 years back in July, i was devastated and at the low of the low for about 2 weeks. I slept in my car at one point for about 3 nights and when certain friends found out they went absolutely crazy at me, but i needed to be on my own and don't regret it. I was more gutted because i never wanted to be a weekend Dad... but soon learned and accepted that it's worse to stay together for the kids sake and now every few days when i see her it's the highlight of my week.
You won't think it now, but in time you'll understand why you had to go through this bad time and look back and think it made the man you became.
All the best mate, the main thing in your situation is being unemployed - you need something to get up each day for and something to motivate you, everything else will come naturally.