It sounds like you have been bamboozled by some BS artists, hence your casino analogy
I strongly recommend the book WayneL has recommended. If anything there are a couple of books to read after that.
Do not worry about execution yet, because from your posts it sounds like you havent got any theory down pat.
I am not putting you down, but can recall when I was first introduced to options I sounded alot like you...............
Saw money signs with covered calls...quite foolish in hindsight