I’ve been a nanny for 4 years and I’m struggling

I’ve been a nanny for this family for 4 years now. I started out just watching one and then they had another. The second one just turned 2 and is definitely harder than he used to be. I used to not mind coming and taking care of them but now I dread it. It makes me so upset to come and take care of them. I literally feel like such a horrible person for this. Ever since I got pregnant this is how it’s been. I’m so afraid I’m going to be a bad mom now because I dread taking care of the kids I nanny. A lot of the time I’m pushed to my limits with them because they just love doing everything they aren’t supposed to do.

I don’t want people to tell me to get another job or whatever because I honestly don’t think I want that. I just want to be better. I don’t want to get upset with them as much as I am.

Has anyone else dealt with this?

Please be nice. Please. Last time I posted something like this I got a lot of people telling me I wasn’t a good person. And I was freaking out for weeks because I’m pregnant and obviously I don’t want to be a bad mom but I was convinced I was going to be.