Pretend the $20 million is guaranteed, and if anything will increase slightly over time.
What problems could be significantly improved for $20 million?
(I am dreaming of winning the $1.55 billion Powerball drawling. Then taking the lumpsum, posting taxes, investing, and spending 4% each and every year. I understand that the actual may be more, or less than the started amount.)
Quit work and take lighter loads in school.
Buy a nice house in Maine right on the water.
Buy a supercar, and all the motorcycles I could ever want.
Go on crazy adventures like an Appalachian trail thru-hike.
All this would be less than 10% of my yearly income. The other 90% would go to charity, helping the homeless and bolstering free and open source software.