How do I forget a girl who friendzoned me?

Guys, It's been a month after our breakup but I still can't move on. I avoided texting her but I still stalk her sometimes. But I don't want her back because she's childish and selfish person. She's just not my type. I just miss the conversation we use to have.

I want to forget her permanently. There's no going back.
How do I forget a girl who friendzoned me?
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