I'm not a parent, I'm guy but ny heart and empathy goes out to you. I've been around and lived wirh kids when was I with the ex and can see how much two parents are needed, it's bloody hard enough then! But maybe try and seek enjoyment through your kids, taking pride in seeing them flourish. I know when look after my nephew for just a day how exhausting it can be but obviously not the same as that'a priviledge. But maybe something you should be proud of and take great pleasure and sense of achievement from. It's small wins.
Of course I know that does not change how you feel in terms of your needs as we all fundamentally have those primal needs and it's causes deep tension and frustrated that runs throughout the body that it can be physicsl pain in body. Touch and physical touch is so healing and powerful antidote. We all need it, don't care what anyone says. It just calms you now, the health benefits are widely spoken about. It's feeds soul, mindy ans body, they're all connected. Doesnt have to mean sex but that helps. I know the frustration and difference when not physical touch or having sex, it does help with mood etc. People can say what they want about it but it does help a little as long. Are you able to maybe book in for a massage or something or tantric massage? It might help.
Other than that, what I would say if you can helps, is finding a passion or hobby you can maybe explore that might lead to you meeting others. The important of a hobby or physical exercise cannot be understated. I started the gym and PT two years ago, I've always hated the gym and now I love it. I never speak to someone and work from home but know it resets me mentally and that's is why continued to do it. Not saying it always works or will work for you. But it reinforces consistent pattern. In your situation, I would never find a single parents fb group or something if possible in your area, they can be lifeline for single Mums, you never know might or might lead to something but at least it's something to explore. Life is all about trying right rather than facing the pain of not trying. I'm quite lonely guy and have my own daily battles but as someone is who isn't most confident guy in the world or with big ego, I'm bit hapless and always give things a go even if don't want to and show up for myself for my body and mind. Keeping our bodies active esepcially now as 36 year old is more important than ever. I honestly think exploring just few small things will help at least lift your mood. Not saying it's going to change your life but what is the alternative, continue to stay miserable and time just rapidly eroding. Time is fleeting, I honestly feel like all weeks roll into one. So we really have to make most of it for what we can. If you were close to me, I offer to just have a chat and just listen. I like to try to energise people and lift them up and be silly because it energises me. Life is hard and we all need someone to listen. I would honestly find other single Mums who you can do this, you will have by default and shared experience of the fact there would be relatable grounding.
I find problem is, this individualistic world we're living in right now. I've been reading through all comments on this post as other people's lives do intrigue me and we are social beings after all. We are designed to be that way and this captialist western world is antithesis to that.
We are now seeing the damaging long term harmful effects of individualistic society. It's no wonder we're all lonely. We were warn about this but governments and measures of years of austerity have ruin any sense of community by stripping all fabric of social cohesion and community outreach and clubs etc through lack of investment. It's hardly surprising mental health is rife and it's only going to get worse until it spills over, we end up in civil outrbeak rioting and destroying each other. The protests are just beginning of this as people's fears are played up on more.
I wish you luck, find a hobby, anything that makes you feel better. Action is antithesis to paralysis.