What if I told you I'm depressed and hopeless because I'm in love with my cousin?
What's going on with your cousin that makes you feel that way?
It's because she's so hot and I can't picture myself with anyone else.
It's understandable to want to be close to your family, but having romantic feelings for a relative isn't usually a good thing. You should try to find someone who has the qualities you like about your cousin but who you're not related to.
Don't bring logic into this, I'm very close to my cousin! Cupid has shot his arrow, it's flown through the air and is now firmly embedded in my butt.
You need to expand your horizons of available women. There are literally billions of other available women in the world that are at least as hot and charming as your cousin.