@Alittlelostinlifeisi what stands out in your post is that you have a full time job from which you come home exhausted, 3 young children, and you don’t mention a partner. You castigate yourself as lazy, but doing a full time job plus caring for 3 children IS NOT LAZY!
Yet here are many PPs telling you to do more housework.
I think that first of all, you need to stop beating yourself up. Your children are alive, fed, and I’m sure, safe and loved. That really is the top priority. I’m even going to suggest that those things are more important then bathing the kids every day!
Then perhaps the next priority is thinking about your own energy levels, is there any scope for reducing hours or getting regular help. Do you have any MH issues that make housework routines more difficult?
Then make your own priorities. Forget about washing the floors for now, work out what the most important things are and start with those. Concentrate on the things that make you feel good and more on top of things.
One tip about your car - you can get mobile valets to clean it. It really is no work at all for you, and they’re not going to see inside your house. Round my way it costs about £60 for a full basic valet, cleaning and hoovering the inside and washing and polishing the bodywork. I’m not suggesting your car is a priority, but it might make you feel nice if at least your car feels clean. My partner is very into what he calls ‘quick wins’ - doing something easy and effective which motivates him to try the more difficult stuff.
The book ‘How to keep house while drowning: a gentle approach…’ by KC Davies might be helpful to you.