When I first separated I remember the loneliness feeling overwhelming at times. I wish I had a place like this to admit it. As I think it's much harder to say out loud to people, without making them feel responsible for fixing it lol :(.
My children are older and it has got better, something it's there, but it rarely takes over now :) I think I have found strategies that help.
When they were little I tried to go out and do fun things on my own when the kids were away, cinema, walks, coach trips to london/cities and sometimes stayed in a hostel, concerts, comedy nights, galleries, film days with popcorn n loadsa sweets lol and nice meals out. I always met someone fun and had an adventure. Sometimes I just hid and felt rubbish & even sometimes got drunk to try and escape (not recommend:(! )
When I was in good spirits I wrote down affordable ideas to do with the kids and had a cup called fun days out ideas. We would keep picking them out until we got one we fancied. When I was low I wasn't motivated to think of what to do, the kids helped this and gave me get up and purpose which helped.
I hope you all find things that help X lovely you can all support each other on here.