30000 a year is about £2000 a month.
You're in a HA property so your rent is lower. You should be able to save more than £2000.
List EVERYTHING you spend money on, subscriptions, food, TV, bills, petrol, Christmas...Cut out TV licence and Xmas presents. They're not essential.
Even car... if husband uses it for work can he use public transport or walk or cycle?
Food bill normally can be reduced a lot. Lentils, cheapest everything, eggs, toast as a snack.
I absolutely think you can save money from where you are.
If you're in a happy relationship and you have Wi-Fi and a library membership you're good.
If you learn how to be comfortable being super-frugal this is a benefit for life.
Do you have a spare room/your sons room? This needs to go to a lodger. Try to put a kettle/toaster/microwave/small fridge in there and you may only see them when they go to the toilet.
Jobs and volunteering. I absolutely get being introverted/and/or ill.
However, you can't afford to just stay in and hang out with your husband.
You need to network and start meeting people. Often mates can give you a reference. Or if they know there's a job going and you're an ok person they'll mention it to your boss.
I get that a lot of social groups are snobby and aren't really designed to be welcoming to people struggling. Keep trying to meet new people though, as cheaply as you can. You need a community.
It only takes a few Ok people to tip the scales.
My ideas first would be:
- RA charity or support groups. When I worked in a charity for X health condition they gave work experience to people with the condition.
- Spiritual groups can be quite supportive and charitable. Buddhists or Quakers are often full of nice intelligent established old people who believe in helping others with "no strings attached". They often run weekly meets with free tea or lunch so try and find some of these.