re: So I need glasses... At 32 y/o :(

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Aren't I rubbing directly on the cornea with my eyes closed now?

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Almost definitely:
In the image below, where the brown meets the white is the corneoscleral rim. That's where the cornea starts. Anything brown is deep to the cornea (it's like a windshielf, kind of). And it's got one of the highest number of nerve endings per square inch in the body (so when it hurts, it HURTS). So I'm not watching what you're doing, but so long as you're looking straight forward when you close your eye (the eye doesn't typically move when you close your eyelid unless you make it), you're probably rubbing your contact directly on your cornea. The reason this is bad is that you are doing this when your contact is uncomfortable. The two biggest causes of this are dryness and debris. If it's dryness, you're probably not going to hurt yourself. If it's debris, the cornea is the last place on your body you want to press a small piece of dirt (or what have you) into and wiggle it around.