None of which is serious enough that it would affect your mental health.
We don't have poor housing in the UK, even the most rank, damp, dodgy, bodged in over an off-licence with questionable electrics is a Palace compared to normal housing for 98% of the people on the planet. In fact, by WHO standards, if you have a roof over your head, a fridge and some spare change in your pocket, even 10p, then YOU are wealthier than 98% of the people currently alive.
You think working at a computer is stressful! 🙄
You can leave your house anytime or God Forbid! talk to your neighbours, that's self imposed isolation.
Wages don't go as far? Yeah, that tends to happen sometimes. When I was in Uni, I lived in a house share and ate pot noodle with mayo for three years (and for the four after) the kitchen sink was live, something to do with the earth wire attached to the plumbing, we git around it by turning off the mains when we needed to do the dishes. But the economy ebbs and flows, in a few years it will be OK again.
We do not have poor health care. You might have to wait a few hours in A&E, but your broken leg will be fixed for free. In other countries you would just be crippled for life or have to pay thousands for a doctor.
As for social media causing stress! Yeah, maybe don't use it. Poof! social media stress gone!