Seasoned Momma's

When do you get used to no sleep and no break? I love him to death but I'm over two weeks in and feel like ripping out my hair. I know it has to get better. When I get sleep a few hours I'm okay but he also has reflux which makes it much worse. Just wondering if things get any better? Otherwise I don't know how people do this twice with a toddler too. Seems like craziness!