This question already has an answer here:

My name is Ariel and I am converting to Judaism. I am converting with Chabad (I am aware Chabad does not have any beys dins), and Bezrat Hashem I will be wearing a Black Fedora very soon. However, I have a problem. I go to a secular school (at least for another week) where the women are not modest and they have this cheerleading nonesense all Sheker. I am Shomer Habrit for the most part, I do not spill seed Baruch Hashem. However, my eyes sometimes wonder and I feel extremely bad about it. What do I do?

marked as duplicate by Double AA Dec 10 '15 at 21:13

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.