I have a 4 week old son and a 4 year old son. My fomerly independent, well-behaved but rambunctious 4 year old is now using all the bad words he knows, repeatingly stating "i pooped my pants" (when he hasn't) and trying all the negative methods to gain our attention. I've tried everything i've read and am at my wits end. I want my child back, it's like watching a neighbor's child that I don't know that well. Between the few hours of sleep at night and my son's behavior, it's wearing me down. Any advice please!!!