So sorry to hear of your diagnosis.
Can I give a slightly different take on this situation? A few years ago I was a volunteer for a project which was run by our local Citizen's Advice Bureau, and the aim was to encourage people to take up benefits which they may be entitled to. The angle they came from was that the unclaimed benefits in our city, which is in quite a deprived area of the country, amounted to many millions of pounds. If everyone who was entitled to claim, did claim, then the extra money they would have would spread into the wider community. An extra trip to the hairdressers here, a lunch outing to a cafe with friends there, maybe a taxi home with the shopping. Paying someone to help with the garden that has become too much, or to do some decorating. But you get the idea, these little amounts of money from lots of people can make all the difference to local businesses. So you could see it not just as a benefit for you, but also something that will potentially help your local community.