I had what is known as a "Blind pimple". Usually I pop one and it goes away by morning. However this time I popped it and it is HUGE! It is not red or painful to the touch, yet it is a giant hard lump now. What should I do to make it go down?

Huge lump. Sorry, not a DIY problem. You have created a situation that would best be safely and efficiently treated by a skin specialist, a Dermatologist.
Leave it alone 1st. If you keep on popping it, the lesion will never go away. I fear however that you might have introduced some germs into the lesion while popping it. If so, you may end up with some pain and pus in a couple more days. It may also be from fluid which may or may not require drainage.