Well you certainly do have something to feel sad about! You lost your job & so far haven't been able to find a new one. I don't know if you were 100% responsible for the household when you were working. If so, that's a problem right there.

Effective job search is a full time job in-&-of itself... & a pretty thankless one at that much of the time. You can't mount an effective job search & also be 100% responsible for maintaining the household (including a new puppy) and have everything spic-&-span by the time your hubby comes home after work. That is beyond unreasonable... in my opinion. From my perspective, both you & your husband are placing a boatload of unreasonable expectations squarely on your shoulders at a time when you need to be at your best so you can mount an effective job search.

Certainly seeing a therapist, & perhaps getting on some new med's, may be helpful. But they won't resolve the interpersonal problems you & your husband have in your relationship. At some point the two of you may want to consider some couples counseling to help you resolve what is happening in your marriage & what all of this blame & responsibility you are wilting under is doing to you.