I can't get over my ex. I'm afraid of starting a new relationship. I couldn't move on right now. How to move on?

I just felt guilty all the time. Not anger but just anxiety and dissapointment filling me up. Sometimes, hatred towards girls.
I cant get over my ex. Im afraid of starting a new relationship. I couldnt move on right now. How to move on?
Updates:
18 d
Thank you all for your supports. It ain't easy for me cause... Everywhere i go i keep seeing her and it keep recalling her.

When she leaves me, she disnt give a reason but just left so i didn't get a closure.

Ill try to keep moving forward. Sorry for this weird question.
I can't get over my ex. I'm afraid of starting a new relationship. I couldn't move on right now. How to move on?
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