Hi sweetie.
You will have good days where you think "man I can't believe how miserable I was yesterday" then you'll have bad days where you think "man I can't believe how miserable I am today!"
It's like riding on the crest of a wave or a rollercoaster, there's so many up's and downs, its crazy.
The stickies on this thread are good, I got a good idea from it. I got the Godfather trilogy and watched them, and it made me feel better for a bit. It's seems silly but small things that take your mind off it help.
Keep busy, tidy up, read a book, watch movies and see your friends and family as much as possible.
The no contact thing will get easier if you stick to it everyday. I know there are some points when you want nothing more than to text him or call him, but you have to fight the urge, because his response may not make you feel better.
I didn't text mine for ages, but he kept contacting me and we got back together, but taking it slow to make it work.
The best thing you can do is keep busy. Talk to people who make you feel better, and don't be afraid to talk about your feelings, people don't tire of hearing it, we just want to make you feel better and make you happier - your friends will be the same.