I can only sympathize with you on how much work they must be. I couldn't ever imagine having two puppies at the same time. I was pulling my hair out when both of mine were puppies and got them 1.5 years apart (and just when I thought the second one would be a breeze cuz 'been there done that', the second puppy was 180 degrees different from my first. haha..).
But I digress. I think you'll get through this. Just keep it up. And always remind yourself to be
consistent, persistent, and patient. Whatever puppy-obstacle you're overcoming, you have to tell yourself
it's possible (because it really is)!! It's really a matter of out-lasting them with your patience during the puppy stage.