[mian2zi3]

> The trouble is that I don't remember anything. ... [If I came into enough money] I'd probably repeat my undergraduate schooling.

I agree with other posters that you'd relearn the material faster, and this is a kind of remembering. I'd also add that you've probably internalized concepts and skills from your undergrad that you don't consciously realize or connect to your education.

What makes you think it would be any different the second time around? (Except that you might retain more having seen it once already.) I don't mean this as a challenge. I've had similar feelings in the past (How can I hold onto this? Why am I forgetting so much?) and I've gone back to school recently and I've struggled with learning how to learn in a better way. It isn't an automatic slam dunk.