Guilty feelings

I'm 23. I fantasized a sports anchor wearing revealing clothes and searched her up in google images to intensify it on her scantily clad images. It feels disgusting that I did that though I know she is a married woman. Though I used to fantasize before, they were fictitious. I watched a few soft core porn clips(I couldn't escape seeing horrible images that pop up while browsing for sensual and I regret seeing them), but feeling wrong I quit it. I don't like myself that I watched them. I'll be filled with guilt when I come across her occasionally while watching the sport and the guilt lingers over. I fantasized her so can't be erased from my memory. I feel soiled. You would ask me to do practices. I am doing them already and will continue doing them. But how do I get over this guilt?