Some very good advise. Even simple things like this makes a difference : “move things about a bit, move the settee put the tv in a different spot, move the bed just change things about…..”
We all have our brains “hard-wired” to expect certain things in our lives to follow a pattern, the hardest thing to deal with in these situations is when these expectations don’t happen, so change your life so that these exceptions no longer occur, or at least are minimised.
Make things as different as you can to how your life was up until tonight. Redecorate, buy new clothes, stuff like that, but most important of all, do different things. Start a completely new hobby, go to evening classes, learn a musical instrument/dancing, anything like that. And meet completely new people too. Keep away from alcohol. And let time do the rest. Good luck.