Should I put dad in assisted living?

My husband and i live in a 1500 SF. We took dad into our home and he is very difficult to care for. My husband had to quit his job as i am disabled. He is very stubbron and more work than we thought. He has COPD and bladder issues (which isn't so bad). He goes to an assisted living day care twice a week and it's still no enough for us. He plays on my sympathy, is use to his wife doing everything for him. Unfortunantely she is in a mental hospital with lewy body dementia, paranoia and parkinsons in CT. We are in Florida. I am feeling very trapped and falling into a depression. I haven't slept through the night since he moved in. I wake up a 2-3am and my mind is spinning on how to fix this and stay up for the day. Since his P/T stopped he stopped doing his exercises, does not want to go anywhere not even a car ride. He used to want to go for walks and now he does not. My heart breaks just thinking about assisted living, but my husband things my health will suffer more if i don't put my dad in one. Please Help!!!