2 DC, 6&8. We are really struggling to discipline them ATM. They aren’t awful children by any stretch of the imagination. They fight with each other (including hitting and spitting - but they never do either to anyone outside the house), not listening/obeying us, arguing ++ in the back of the car, being rude to us (again they aren’t rude to adults outside the house). We’ve tried banning screen time (they don’t get much anyway), not allowing them to go to favourite activities (which always seems a waste of money as I’ve already paid for them and them not going is usually a huge inconvenience to me), cancelling play dates (again, inconvenience to me and sad for the other child), making them do extra homework. Literally nothing seems to make any difference. Any suggestions?