1.Adverbial clause: "which in turn reduces stress and anxiety" uses an adverbial clause to explain the consequence of managing time efficiently, adding depth and complexity to the sentence.
2.Present participle as an adjective: "keeping track of assignments and exams" uses the present participle "keeping" as an adjective to describe the action, demonstrating advanced grammar usage.
3.Noun phrase as subject: "This structured approach" serves as the subject of the sentence, using a complex noun phrase to describe the method, enhancing the depth of the expression.
4.Correlative conjunction: "not only... but also" is used to connect two positive outcomes of being organized, showcasing a complex sentence structure.