Personally I feel consciousness is overrated. People throw the word around, each meaning something different; sometimes I feel they don't know what they mean. I think it's a secular word for "soul" that is now supposed to lurk somewhere within the brain. My guess is it's a necessary fiction, that we use to differentiate ourselves from the "other", and we use socially to maintain distinctions between others.
Inow suggested what is "you" might not be so clear-cut. You interconnect with a changing world and you yourself are changing all the time. If "you can't step into the same river twice" it's not only because the river is a different river, also because you who takes the next step is not the same you who took the first. Entertain the idea, but I don't expect you to embrace it.
Because for some reason you've got a deathgrip on the notion some part of you is inviolate. This unique "you" can't change because it's detached from the world. Logically, the destruction of the universe doesn't affect it. Seems like an inert burden to me, yet you cherish it.
So at least one guy-on-the-internet thinks you're remarkably attached to your individuality. Ask yourself if it's true, and if so why. Good luck.