Sighhh!
Is your bunny neutered? This is a important step. My two baby Flemmish bunnies are not neutered yet. They will be 5 months old this weekend. I can remember that I chastised people for complaining about their bunny chewing by saying you need to give the bunny something tastier to chew on than carpets, drapes, furniture, upholstery,..my comment was to solve this problem just give them something tastier to chew...like oat hay. My experience was with a rescue adult rabbit. My two Flemmish babies are something else. It appears that whatever we give them to chew, they will chew other things also. We have proliferated card board boxes on the floor under our dining room table. They just love to push the boxes around, jump in them, and eat them...the shred the cardboard boxes and eat the paper. It's been many weeks and eating cardboard paper doesn't hurt then and they seem to enjoy.
When we see a bunny trying to eat the carpet, we pull the bunny away.
We love our two Flemmish girls. At 5 months of age, they are big bunnies.