Hi Mishka,
You've got a lot of good advice here. Widowhood is isolating, AND motherhood is also isolating. So hard.
For me, and take any/all of this with a grain of salt, because it really is different for everyone, and everyone has their own circumstances, but for me, therapy was key and probably my #1 most important thing. I realize it's not like that for everyone, but I leaned heavily on therapy as a time and place for me to allow myself to fall apart, so I could "be strong" in real life, whatever TF that came to mean. I made a big effort to find widows on-line and in real life (this may have been a tie for #1), and made them the biggest part of my social life, even just writing back and forth on-line. I identified the people who could handle talking about "real" things in a "real" way - I ended up losing some friends, but I also gained new ones, by forgetting about being "shy" when meeting someone new who seemed like a good person (I mean friendship-wise). I tried to be active physically, to capitalize on endorphins for feeling "up," when inside I felt so dark. I tried to get lots of sunlight - didn't allow myself to sleep too late and made myself get out of the house - if I was going to sit around feeling sad, I was going to do it sitting on a bench somewhere pretty rather than in my living room while the day passed me by. I avoided thinking too far in the future. I tried to cling to very simple things for peace and, eventually, happiness - like ridiculously simple things, like, "The light on those leaves in the breeze is nice." Like stripped it down to super basic stuff. I wrote a lot, just to get my overwhelming feelings out of me. I also clung to ritual, and part of that for me was going to synagogue once a week - this helped with a feeling of community and of being out in the world with others, and also gave me peace and comfort. I visited his grave once a month - no more, no less. I also watched lots of movies and binge-watched TV shows. Healing takes place extremely gradually over a long period of time. It's not something we're used to - having so little control. I tried to accept the badness.