Yoyo, Ok so I'm a tech guy who jumps professionally and academically between politics/foreign policy and tech. Here are some good old school reads.
Also download the State Department's app for the Foreign Service Exam and make sure you know all the types of question it asks. Then when you're 20 and can take the test the written won't be an obstacle.
hmu if you want more ideas on this, but if you read that stuff you'll be in REALLY good shape. Also strongly consider listening to the PBS Newshour's podcast every day. It is the finest piece of news in the world.
Also go ahead and read the super ideological stuff (i.e. Chomsky) but if you take it too seriously nobody is gonna listen to you.
Also there's a book called "insatiable appetite" about U.S. government and business policy towards Latin America.
also, also, The Prize and The Quest by Dan Yergin and the Great Race by Levi Tillemann. All really good books on foreign policy, industrial policy, and resource acquisition.
>Are democracies really more peaceful in their foreign policies, or is it simply a game of labels and semantics?
Agreed. Dan Kovalik has written an excellent book on this primarily Western practise of using humanitarian intervention as an excuse to advance their interests.