Oh I hear you...my 4 year old is driving me nuts too! Luckily he is going to French school and they start a bit earlier...I can't wait! I know I am doing this to stay home with my kids and I am still happy to be doing it, but boy do they know how to wear you down at times! I second what treeholm said...go treat yourself to a starbucks this evening...get out and do something fun...anything to get yourself out of the house. It also helps to go to the park and have other moms/caregivers to chat with/complain with...I am pretty sure we all feel like this at times...I love waht I am doing and want to continue doing it, but I have definitely had weeks just like what you are describing! Hang in there!