Agood reader fits his speed to his need" means the good reader

What suffix would u fond in the word indicate related to

How should i study korean, and how many hours should i study it? i am a high school student already learn japanese in class, also i play sports so i tend to not study korean much because i have an excuse, like, ‘i dont know how to properly study for korean’ 감사합니다

It will gain you more knowledge, intensify your soft skills, strong work ethics and grow your network. what is it.?