I am a seventeen-year-old female with anxiety and depression. Certain thoughts will pop up into my brain and won’t go away even if it might not be true. For years now, the worst thought that has gotten trapped into my brain was that I had s***** and/or romantic feelings for my sister. I am fully aware of how wrong that is, yet I can’t seem to forget it. Every time I see her, I feel aroused, but then I also feel like I wanna throw up. I don’t ever hope to actually be with her in any way, but I can’t shake the thoughts and feelings. I really need a way to make it stop without turning it into a big, embarrassing deal. Help?