My trading strategy/insight is derived the most, from the fact that I have read literally hundreds of investing and financial books;
from personal finance skills/process, to financial independence, retirement strategy and planning, tax rules/laws, credit management, estate planning, stock trading, dividend stock investing, psychology, sociology, specific forex books, commodities, Macro and Micro Economics, real estate investing, and on and on.
I used to write a dividend investing blog, and have been planning to publish a few different types of books when I ever have time to finish them, curated hundreds of articles.
And have over 6k bookmarks in Chrome and meticulously categorized tabs and folders going back to around 2005.