c2c blanket, how long did it take you? How much yarn?

I recently started a c2c blanket, pretty big, 100x200cm and Im wondering how long did it take you to finish yours? How much yarn did you use? Idk if I need to buy more, and I'm starting to get bored already :// do you have any tips? I'm using 4mm hook so pretty ambitious for a big project. I would love to hear about your experience with this type of blanket!!