If you're gonna think about women, think about how great the next batch of women you are going to meet are & how they'll put your ex to shame.
If you find yourself nonstop thinking about women (most of us do), use it as fire to your desires in other facets of life- go workout to get the body you know women will like. Ifyou want a smart chick, or to impress smart chicks, read some books. Make yourself as attractive as you can- just like the theory of athletes who wear the freshest **** during their games- "look good, play good"...you'll feel more confident about yourself & that in turn will attract some new chicks to you over time.