I suck at trivia games, cuz they never use any of the stuff that I inadvertently keep in my mental collection. Mathematical astronomy sounds quite specialized, while I’m talking about something a bit more random.
I could never understand how anyone can study “math”. I want to solve problems. In order to solve a problem I may have to learn some math or physics, so that’s ok.
Finding an interest and digging into it is the way I learn. Almost everything interests me. (Unlike Jean Francois Kerry, I am not intrigued by rap music, for instance.)
I do ok in trivial games, in part because I’m a game player (poker, monopoly, bridge, chess, football, basketball...) and I learn how to “game” the answers. That’s really important in Jeopardy or Trivial Pursuit, for instance.