My skills are TRASH?

A normal boy who was drag and transported in a cultivation world where there are Spirit Beast and Element Skills. He don't know what to do but by the uniqueness of his simple system he can enhance his strength as well as acquiring new abilities and make his work easier. Li Zhi started gaining knowledge about different things in his new world, and by getting stronger, somehow he pretends to be weak known as a trash because of his useless skills. What would really happen to his new life? - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - -- - - - - - - Author's Thought Guys... there might be a mistakes and I hope you can understand it. As I a beginner you can leave comments so at least I can improve it. (Things will get interesting)