No sex for single moms?

I'm a single mom of 2 kids. The dad is a pos and never was there for them. I do everything on my own. Anyway I was horny the other day and thought it has been like 3 years since I've had sex. I always have my kids so I can't go out. And I just felt like I'm never going to have sex again. Any single mothers have advice? I know sex isn't everything. They're my priority but I get stressed sometimes and want that feeling.