I would suggest that you ignore the people who say that it isn't a big deal, because if you feel this bad, it is a big deal. It's a big deal to you. Trying to pretend it doesn't affect you or convince yourself that it doesn't matter will only make you feel worse.
Other than that everyone else is right, time heals. If you can, try and figure out what it was about this girl that you loved so much and why you loved this about her. Is there some issue or fear you have that is involved here? Think about where this issue came from and try to think of the relationship and the breakup as a learning experience. After this, it will be a lot easier to get over the whole thing. After this, distractions are helpful. Get a hobby, hang out with friends.
Oh, one thing that helped me a lot was going onto Craigslist to the missed connections and reading about other people's problems. Knowing that you're not alone does wonders.
Other than that everyone else is right, time heals. If you can, try and figure out what it was about this girl that you loved so much and why you loved this about her. Is there some issue or fear you have that is involved here? Think about where this issue came from and try to think of the relationship and the breakup as a learning experience. After this, it will be a lot easier to get over the whole thing. After this, distractions are helpful. Get a hobby, hang out with friends.
Oh, one thing that helped me a lot was going onto Craigslist to the missed connections and reading about other people's problems. Knowing that you're not alone does wonders.