getting over crush: how did you do it?

I (30sF) have had a crush on my friend (30sM) of a year, for about a year. And he has made it painfully clear that he is not interested in me that way, so I want to get over him. I said i wanted some space, of about a month, of no contact so I can get over him, meet others, get involved in hobbies again. He seemed ok with that and said so, so that's good at least. But what I'm wondering, is how did you all get over your crushes? What did you do specifically? And how long did it take to finally be done with it?