It’s so hard. Great advice from PP about taking it an hour at a time right now and wrapping yourself in cotton wool, drink water, munch on healthy snacks if you can’t face a full meal, don’t worry if you can’t sleep.
But in the long-run, looks like he hasn’t been making your life happier compared to if you were alone. It sounds like he’s been limiting your life. But you can expand it again.
I’ve always hated being alone. What’s helped me is being my own best friend. And routine (daily, weekly, monthly). Get up and make yourself a coffee in bed (as a loving DP might), treat yourself to a lovely healthy lunch, either out somewhere with a good book, or at home (as a loving DP might). You get my drift. Book yourself in for a monthly treatment. Plan one lovely day out or weekend away with DC or friends per season (Spring, Summer, Autumn, Winter). Imagine you are the partner you’re planning and doing special things for.
Make as many friends as you can, not online but IRL, e.g. via local clubs, like book clubs or walking groups, evening classes, volunteering or whatever you’re interested in. A lot of people you meet will be a pain in the arse or not your type. But even if you meet just one or two people you get on with, your social circle starts to expand. And they’re people who didn’t know you with your ex.
Reconnect with old friends you haven’t seen for years. They’re often keen to be friends again, even if they have a DP. They often want to carve out their own life too, once DC are older. You have a shared history. Plan little things with friends to look forward to: meeting for lunch and/or a nice walk, trips to the cinema, music gigs etc.
Face the things you thought you couldn’t do alone: dealing with DC, life admin, sorting the car, DIY. It’s daunting, but when you face it and do it and it all works out, it builds your confidence. Ask people who can offer help and advice. Lots of people are really happy to help. The guy who ran my local hardware store gave me so much great DIY advice.
If you don’t have a radio in your kitchen, I really recommend it. It gives you instant company, even when waiting for the kettle to boil, and is a distraction to your thoughts. Radio 5 Live is good if you’re at home in the day. Or 6 Music.
If money’s tight, take pleasure in little things: treating yourself to nice tea and coffee, a more expensive bottle of wine once a week or month, a lovely shower gel that makes you feel like you’re in a posh spa, planting pots of herbs or flowers, a regular walk round the neighbourhood where you notice the seasons change each time.
You can do this. And you’ll come out the other end with much more confidence and a whole new chapter of your life to look forward to. Like a butterfly from a chrysalis.