You WILL get out of the low spot (the one we have all been in) and it looks as though you are making good progress. The only thing I would add to what everyone else said (and no, I didn't read it all, so my advice may be a repeat) is to make sure you get good daily nutrition ... all your vitamin A's, B's, C's, D's, etc. and necessary mineral requirements. You might be amazed at how seriously BLAH you can feel just from not having enough of something that your body and mind needs to stay healthy. If you are crying a lot more than is usual for you, you probably have a hormone imbalance, also.
Believe me, I'm not making light of your family and business ups and downs, but I know that you can deal with everything better if your body's physical and chemical needs are met.