My partner is like your husband. His place was a tip before we lived together as well. I have learnt to let the little things go and it's made life so less stressful for me. He has his own dirty washing bin and knows things will only get washed if they are in there. If he wants to wear his pants two days in a row or his chill out gear all week it doesn't bother mE anymore. He washes his own stuff etc now as i just left them for him to do. I pick up crap as I go along and he has a big bin down by his side of the sofa to put his rubbish bin which he will now empty.
I used to get so stressed out over stupid things like not rinsing the sink out after a shave but who sees that but us? No one!
I also lowered my high standards. It took a while for me to learn to chill out but I'm happier and so is he. Our home is a home not a show house. Life is messy and houses and kids get that way too. I found the more you rage against the machine the more it will seize up completely. Does it matter if my partner has left the plates soaking? No. At least he put them in the sink! 
I knew he was a messy sod when I met him but love him for him, messy habits and all.
If I want a sparkling tidy house then I will clean it. If we have guests coming over then he helps me tidy as we go along. (I'll tidy up etc and then he will Hoover and wash the floors)
It took me the deaths of too many loved ones to realise that life isn't worth getting wound up about silly housework chores.
As for hobbies, can you afford a babysitter (or have family)to look after your little one so you can take up your hobbies again with your husband every week or get out the house, even for a meal (no washing up)
You sound exhausted trying to have things perfect and to your standards. It isn't worth it at the end of the day sweetie.
Sod a tidy house. Get a dishwasher!
bung everything in pretty boxes that annoys you and sort out when full. Muck about on the unvacuumed floor with your kiddie.
I'd now rather sit with my messy sod and watch a film in the evening whilst we make each other laugh or discuss bad plots than have a clean kitchen etc. because I know one day one of us may not be there anymore.