So, the hood of the clitoris isn't really something anyone generally needs to (or really can, not in any grand way, anyway) "lift up." It's not usually a whole lot bigger than the glans itself, which is to say, it's pretty small. Many people rub the glans through the hood because direct contact with the glans otherwise feels too sensitive. For those who feel differently, it's more a matter of just pushing the hood back as you stimulate, rather than it being something one lifts or has to hold back.
Seeing where the clitoris is usually isn't necessary to find it, because it's very sensitive if and when we're turned on (and sometimes even when we aren't). But masturbation is about doing what feels good rather than finding X-part, you know? So ultimately, if you are simply feeling around and following what feels good it doesn't actually matter where you are. And if what feels good for you is contact with your clitoral glans, well then...you'll find that. Do you get what I'm saying?
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead