I have so much anxiety right now that I want to cry. I got a job and will start training tomorrow…

I have so much anxiety right now that I want to cry. I got a job and will start training tomorrow morning and I'm freaking out because I'm never not with my kids and my husband will be taking care of my girls. Normally when I leave him to go do errands or just get away for a little bit he freaks out and calls me and doesn't know how to take care of them. But my hours will be from 10 p.m. to 6 a.m. only on the weekends so my girls will be asleep but now I'm freaking out and don't even want to leave my girls. Now wondering if there's a job that I can work from home. I just don't know what to do now.