I couldn't say I was poor at all, especially as myself and my partner have assets, so if the proverbial really hit the fan, we have a safety net, however my self-employment earnings are very meagre (below minimum wage) and my partner's job, despite being fairly skilled, pays very badly, but we live rurally so don't have many options. We cut each other's hair, I wear really old clothing and do many of the usual frugal things. I don't have TV, or subscriptions (other than the internet), I don't go to restaurants, or the cinema, and very rarely go on holiday. I don't even use a mobile phone.
I am lucky in that I do have land, and I grow a lot of food, have an inexpensive polytunnel, keep chickens and have fruit trees. If you worked out how much time growing vegetables takes, it's not quite worth it purely on an economic basis, however the quality and taste, and the exercise it gives, totally compensates in my opinion. If you have very little space, you can grow a lot in pots, vertically. You can even grow courgettes vertically. I eat quite a lot of rice and pasta and porridge oats, which are all inexpensive, and most dishes are made from scratch using ingredients from the garden (we don't eat meat). It's part of the reason we don't go to restaurants, not only because of the cost, but because it's very rare we find one that does better food than we have at home! When I need to supplement, I visit several supermarkets and pick and choose from each, with a good knowledge of prices... Winters are more tricky; I have things like salad, Jerusalem artichokes, potatoes, and produce like squashes that I've harvested in the late autumn and store for months.
I burn logs in the winter, and usually wrap up in multiple layers and tolerate the cold, although a couple of winters back I started getting chilblains in my feet for the first time in my life, and that wasn't very pleasant. A decent pair of socks and slippers seem to help.
In essence we're relatively asset rich, cash poor, which is pretty much like being poor but with a safety net, which certainly gives some peace of mind!