Too much tidying

Hi,

So I'm in a predicament, and I'd like some advice. I'm in a situation where I have 3 generations of clutter in my 3 bedroom home. I need my house to be declutterd organized and funtional before my son turns 6mths old. I also have a 2 yr old girl. I have one room and garage that is not functioning at the moment. And his passed mother's stuff still remains in every inch of the house. Every surface becomes a catch all. He has every skill set to start and finish projects. I have ADD and cannot find the light at the end of the tunnel. He wants to do what we can then when he can he'll declutter or whatever while I take care of the two kids. He's embarrassed to have anyone over period. He thinks we can do it ourselves but once I get done with my daily stuff I don't have the time and energy to tackle things like organizing an entire closet or book shelf. Inevitably if I start something like cleaning/organizing a bookshelf the books and papers will sit in piles on the floor bc I had to stop to tend to the kids or get a meal prepared. So I'm left with the choices "do I start and make it that much harder to function cuz I can't finish?" Or “do I just leave it for him to eventually get to it and hope that he's not building resentment toward me cuz? he doesn't understand why I can't do it” I need help my mom is willing to have me hire but I need advice or options of what I should do. If you can help in anyway please I'm all ears for suggestions. I have the most anxiety when I get overwhelmed by decision making. It takes me 5+ times to get something the way it best suits function. If an item has a home already I’m fine but if I have to make a home for an item I meltdown and stuff it in a draw and walk away thinking I’ll go back to it. If I’m not taught HOW to organize I’ll always end up in the same position. I’m not wanting to hire someone to just do it so I don’t have to. I want someone to come in make decision I can’t get passed and GUIDE me to get my home back on track in the fastest manner possible. What should I do???