I get all of this, and at times I feel the same. Lone parent too which makes me terrified of when my DC leave home.
Then I think of my grandparents. They had a little holiday every year to Blackpool, a tiny house, they didn’t have much to look forward to.
Yet they were content. My Grandpa took every opportunity to learn new things and kept his brain active well into his nineties. My grandma has crippling arthritis but on they went.
Were people more content with their lot at that time? Is social media and our resulting expectations to blame?
Happiness = expectations / experiences
Now I try to change my mindset. What have I done today or yesterday that I’m proud of, that was good? I think we have to try to create these moments.
I do know it’s hard though. I see no way that I will ever be financially well off and with a lovely long term DP, for example, but I try to focus on what’s good.
This is no way a judgement on anyone else’s feelings by the way.