I need a break

I'm pretty private person. I have a 6 month old, a 15 year old, and a husband. I'm so drained. I just started my daycare at home. my 6 month old is here with me. and after work, my husband get home late from work around 7:30pm every night. and he takes over, which is nice but I get no sleep at night because my 6 month old wakes up 3 times a night. on the weekends my husband works or goes to the gym. I just want a freaking break. I know I can tell him and he'll give me a break. but I think I took too much on with my business. I don't want to quit my business, then I'll feel like a failure.