Would you be willing to share how you make that work? I can’t imagine living on my own for that much, let alone raising 3 kids. What does a weekly meal plan look like? Do you drive? What are rent and property values like in your area?
Edit: Just ran some numbers, and I can see how that could be possible, but it’s dangerously lean. We shouldn’t need to live like that. I commend you for making it work, but would like to say that you’re definitely worth more than $20k/yr (especially with all those home improvement skills, but regardless)