Maybe anxiety and depression would be worth looking into getting on Zoloft like I'm on. It helps my meltdowns even out. I'm not as happy anymore ,but at least I'm not anxious. I have a lot to be happy for like family too.

I know that burnt out feeling. Maybe you can get a sitter & take some mommy time. Don't even have to do anything really, just take a nap without having to worry about the kids. When my 3 were little my mom would watch them for an afternoon or over night so I could rest. I have twins & my son is 18 months younger then them. I got through it & you will too. I think we are program to slender all of our energy on the kids & not take a minute for ourselves.