As someone who starts the thread by saying they 'had a good education' can be so ignorant, and unaware of the world around them beggars belief.
I consider myself to be privileged as we now own our house outright. But I am retired, and both dh and I worked all our lives. I saved for my deposit for my first flat by living at home for 7 years, to save, and worked 2 regular jobs plus some ad hoc babysitting on top.
In terms of salary - you could use an internet search engine and look up the salary for most jobs in the public sector - teachers, nurses, firefighters, social workers, physiotherapists, admin, police officers, paramedics, speech and language therapists, and so forth. All careers I am sure even you are aware of ? Careers that need good A-levels and a degree to apply for.
Or, here's a thing, you could chat to the person that cleans your office, (or your home?) or the concierge or security person on the door, or the person who does your nails, or the person that serves you in the supermarket, or delivers stuff you order on the internet, or the school crossing patrol person, or the person that does your nails. Ask them what they earn, or their partners, or what their weekly budget is for food. Or, if you want to make even more of a fool of yourself, ask them how much deposit they have been given to buy a house.
Or as someone else suggested, you could try volunteering at a lunch club or Warm Welcome place, or a Food Bank, or any of the Debt Charities that operate, or at a Night shelter, or anyone or 1000s of small charities that do great work across the country.