Good job on 4 days. Pretty normal to be emotional and sensitive at this time. Good thing about moods, good or bad, they always change!
Since you're not working why not try volunteering at your local homeless shelter or women's shelter? No better way to find gratitude than to be of service to people who are less fortunate.
I try to switch my thinking around when I'm feeling sorry for myself. "I haven't enough money, I can't pay the mortgage" "At least I have a home". " my teenager is driving me nuts" "at least we have each other and love each other" etc etc.