I am a good player, but I never studied

So, I'm 16 years old, and I consider myself a solid chess player. I've never had a coach, or watched any tutorials by any means. I know some openings and some "tricks" (pawns square and default stuff like that). I have a 1300 rating on chess.com because i resign a lot of games or I am distracted by other people when playing. I can consider myself an 1800-2000 player in classical chess, and my strongest "part" of chess is midgame. My question is, is there any books that sums up everything that one should know (beginner books, but short ones, and opening books), and some good books for endgames. I am seriously considering dedicating a lot of my time to chess, because chess is a game that never gets boring.