Parents opinions needed

Parents! I’m a stay at home mom to a 9 month old and this week started watching a 6 month old for some extra income. Well, this kiddo is NOT easy. She’s used to being held all day long, constantly being catered to and that’s just not how I do things with my kiddo so it’s been a rough week( I have no problem with the kid being attached just not used to it being so extreme). She cries (I’m not kidding you) all day unless she is being held. It’s starting to disrupt my kiddos day as she’s been napping horrible by the time other kid leaves by 6:00 my daughter is falling asleep because she’s just SO exhausted and is now waking up at 4 am 😣 it’s only been a week so I don’t want to back out just yet but another week of this will drive us mad and i feel for the other baby. Any other moms out there who do this to that have some tips for me? They’ve already gone through 2 other sitters who didn’t workout so i don’t want them to have to look for a new one AGAIN.