how do you handle the stress of taking care of everything? the baby, the house, the spouse, yourself.

First step is stop trying being perfect in every role, that's humanly impossible! Secondly, seek help; from your spouse, helper as managing everything alone is tedious and irritating. Thirdly, time management is very important. The lady of the house needs to take out some "me" time for herself. This way the stress can be reduced.