Im moving on but still have lingering thoughts?

So I finally realized i need to move on from this girl ive been hooking up with. I like her way too much and get nothing in return and know its not healthy to wait for her. Im starting to get over her, but there are things that trouble me. We have shared many intimate details with each other and just the thought of get over her now feels like i wasted so much time and effort. How do i get past all the little things that we have shared abut each other? I feel like she knows me better then lot of other people, but for my own well being, I need to forget about her, at least for some time. Any advice?