You could go out and buy a bunch of books and start reading them and quickly get overwhelmed in the seemingly massive learning curve it takes to go from nowhere, which is where it appears you are, to a rich internet entrepreneur, which is where you want to be.
Alternatively, and what I would suggest is, you could define a problem you want to solve, and then go about finding the solution to that problem. Start with something small. "I have a problem: I don't have a web site about myself.". Define what you need to do to solve that problem, learn the basics, and do it. Then, define a new problem, which probably relies on the solution to the first problem, find what you need to do, and do it.
This is how all technology professionals evolve. My first website was a personal site with nothing but text. Then I added some jokes and some movie quotes. Then I got tired of man-handling all the updates to I learned how to put them into a database and retrieve them from the database for display. It goes on and on.
Call me when you've got more money from your financial windfall than you know what to do with.