GOOD for you. And hey, if you are making your children smile and laugh then it's all good in my book. And just think, you are giving them the best gift ever and think about how hard you are working to provide them with this gift. YOU. And that gift is priceless. Keep going. It's a hard process to go through but completely worth it - SO worth it. :)
And I can tell you (actually PROMISE you) that you soon will be getting MORE than 3 hours of sleep a night - you're doing great so just keep going and soon you will be given the gift of SLEEP. And you will appreciate it like I can not tell you! I promise you, the full night's sleep will return. :) (I'm proud of you - hope it's okay that I said that?)