I feel for you on this day when we are, so many, struggling with the same feelings. We are never alone in our loneliness ... sadly.
Last year I started crying and thought it would never stop ... it has eased but not stopped and I have adapted to what is manageable tearfulness and stuff the rest down lol ... mostly because the act of crying is so exhausting in itself and eventually sleep wins for me but also because I can still laugh ... still smile ... still be, here, in this world.
I hope solace finds you if only for relief from the constancy of sadness for a brief time.