Open Question: Bad habit while masturbating and another question?

[feedcrawler]

Whenever I masturbate I almost always use a picture of an attractive female co-worker that I find on their Facebook. Whenever I finish I feel like an absolute creep but yet I still do it. How can I break this habit? Also I have a bit of a foot fetish, I have no clue why, it wasn't until about 2 years ago that this started and before that I was disgusted by feet. How can I get rid of that annoying fetish? I also should mention that I do have a girlfriend, she is aware of my habit and is helping me stop but I wanted to get a second opinion online.

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