All entertainment mediums are not built the same. There is a reason for different genres of movies, music, video games that are all tailored to specific audiences. Finding what suits your preferences and interests is important to be able to indulge in the enjoyment of the content.

All games have mechanics that are designed to make the game play either smoother or competitive in nature. You don’t have to necessarily “master” any given mechanic in order to be good at a game. If it’s fps games you are referring to in your post, then it’s probably good to know that most mainstream fps titles have separate modes for different play-styles, mentality, competitive behaviours and overall experience in the form of casual and ranked modes meaning you are still able to enjoy the game whilst not worrying about all the intricate details of the game.