Committing three months: what to know?

I’ve decided partly from this subreddit, to commit three months to understanding and exploring Masonry.

The Masons I’ve met have made a significant impact on me, and the idea of becoming a better man really speaks to me. I’m hoping I have something to offer a lodge, and in turn, it has something to offer me.

I’m wondering, besides visiting and petitioning a lodge, what should I know? What should I study?