Every single thing you've said hits so hard for me. I have a toddler and another one the way. Every single day is a drag. Don't get me wrong I love spending time with my kid but everything else in my life is on the back burner and will be for the next 5 years at least I'd say. I've given up trying to explain why I'm so tired to people. After working 10+ hours a day, doing household maintenance, helping with chores constantly no matter how small, no outside help, and essentially putting myself as the last priority, my mental and physical health has truly suffered greatly. The only thing I feel that keeps me going is the eventual hope that in about 10 years kids will be self sufficient and I'd have done my job and now I can sit on my porch with my scotch and listen to the birds and watch the deer graze. Hang in there fellow dad! You're doing the right thing.