These are all good ideas.
I did acupuncture once a week that I found very calming and sort of nice to do for myself.
My husband was really supportive and that was amazing. For example he came to all my appts and even when there was nothing for him to do and he was just in the waiting room, I never felt alone and it was nice to have even the ride and company rather than waiting for the metro and feeling sad.
Tried to stay occupied as much as possible, whether that was social plans, short trips, even TV shows that were really gripping, etc. I basically tried to take care of myself / treat myself as much as possible.
There was a book I really liked about IF, I think the author was Jessica Halpern.
I luckily liked my job and I stepped up because it was good to feel engaged and accomplished at something else but sometimes it was hard to keep my head up there too.
I did tell a few close friends and stumbled on others who were going through it too. That part was amazing.
Honestly I sort of curated my life a lot. I tried to minimize spending time with ppl with kids and hearing about them etc, especially ppl who would complain about how hard parenting is and such. Just too painful. I also muted a lot of friends on FB for that reason. I deleted FB from my phone so I'd just look at it more occasionally on my laptop (if you have more restraint, you can just get rid of social media obviously). I had a number of single or childfree friends and spent a lot of time with them, going out, etc.
But it was just really hard. Good luck to you, OP.