I would take the payments instead. Unless the whole economy totally collapsed, the payments should be secure, and if everything collapsed; then the money would be worthless anyway. You can get about twice as much with the structured settlement, and it can be left to your family if you die before it is all used up, and if it is a lump sum and you leave it, they would have to pay an inheritance tax anyway.
If you take the lump sum, then you have to decide where to put it once you have it. Banks are certainly NOT safe anymore, especially with cyber-theft growing every day. Hiding it in the mattress is not always a good idea, and being mugged or killed by someone who is robbing you is then a possibility.
I think with the structured settlement, and if you lived so it wasn't obvious that you had all that money, then you could just enjoy life and not worry about it. I would get a newer car, and a house that I liked, but nothing really expensive. Then, I would fix up the house inside however I wanted it, and keep the car running good, and help out my kids and other family after that.
It would be really nice not to have to scrunch pennies anymore, and be able to buy what I needed (or wanted), and not just settle for what I could afford.