You've had an important insight: sexual desire is a powerful one. From here, you'll get a variety of different kinds of advice and explanations on what to do; some of this advice will directly contradict, depending on the traditions involved. Many different approaches work if one commits to one of them and practices in good faith. It just depends on what works for you.
This means you need to find a teacher you can trust, who is competent and willing to work with you, and ask for direct guidance. Then do what that teacher says as best you can, and check in later for more guidance. This is how to work with the mind generally, and its different aspects such as sexuality.
If you don't have such a teacher yet, the best question you can ask on a board like DharmaWheel will be "can you help me find a teacher near me in __________, California?"
All the best to you in your practice!