I am sexually attracted to my cousin sister, who is 3 years older than me. I love her so much. She also loves me a lot and also we are frank to each other. But sometimes I am not able to control myself. So, I do masturbation on my fantasy thinking about her of sexual desires. If she came to know about this kind of mentality, she might get very upset. How to get rid of my problem and how to get rid of any sexual desires. Thanks in advance.