Just like the others said it might take a while. The best thing is just be alone like you are doing. After a bad breakup with a girl from 3 years I thought I couldnt be happy again, but I realized I had to be happy by myself before I could be happy with someone. I am happier now than I was even with her and I know that next time around things will be even better, so dont lose hope, cause things will come around and could even be 10 x better the next time.