My advice, which you might not see here, is to write about every game you play. And ideally every movie you watch and book you read, too. To develop a sense of your own taste and what makes a game good to you, you have to write your ideas down. Go through the major moments of a game and describe how they made you feel, and what they did to make you feel that way. Dissect the mechanics and identify stuff you liked and stuff that frustrated you.

This is pretty much what college is. You just write essays where you dissect stuff like that and then a professor reads them and gives feedback on your ideas and how you communicate them. You can do the same thing informally with your friends and partners, just discuss games.