I never had to think about money when I was younger, but divorce, etc led to a period of homelessness and even after I got a home, we were dirt poor for a while.
The dread of the electricity bill, children needing shoes and having to time the immersion heater are my worst memories. That and no transport in a rural setting, which meant being unable to buy food cheaply at a supermarket, and having to put things back when I did, hitchhiking to the dentist or doctor in the next village (not on bus route) jumble sale clothes. I remember bringing home a spin dryer on the market bus, which I bought second hand in an auction. Cafes were usually out of the question, unless the DC needed a wee, and then it involved things like having to say no to fizzy drinks and cakes... I did go without food to feed the DC until I discovered I could buy trays of eggs in the country market so cheaply, I’m surprised I didn't end up looking like an egg sandwich 
In many ways it was a miserable time, and it is a fact that the likes of politicians and media people generally have no clue about the material and social deprivation and stress involved in being poor.
It was a short period in the scheme of things, and the DC are grown up, apparently unscathed, but it has left its mark on me, as I am now always prepared for poverty, with food stores and enough books and clothes so I could survive.
I never get over the sheer bliss of having a vehicle, a washing machine, a shower, heat, let alone all the stuff I can afford now.