The key to taking your chess to the next level is often the simple practice of studying your own games. Every grandmaster knows the importance of chess analysis, but many casual and club players try to improve only by playing.
Once you understand chess notation, you can replay your games, but you can also learn from grandmasters of the past. Why do we analyze? To improve! Looking through your games and others is how we improve at chess. If you only play the game without analyzing it, then you will have trouble improving.
