Always carry around some books. Hermione is hardly seen without one or two big books in her hands. Try to read some non-fiction books, like history about your school, town, country, religion, etc. For fiction, try the classics, or realistic fiction, Hermione would read the most realistic books (but Harry Potter works, too). You can get an old fashioned book bag that can be tan or light brown. Sling it over your shoulder when carrying it.
Read widely. Hermione is an avid reader and will read up on all sorts of subjects. When you go to the library, consider perusing the non-fiction section on subjects such as philosophy, history, culture, science, animals, and literature. Reading widely will make you a more cultured and refined person.
Be organized. Hermione is extremely organized. She does more subjects than anyone else in the grade, yet she seems to have time to read widely, advocate for the welfare of elves and helps friends, such as Hagrid, in need. Hermione has a homework planner and a good work ethic.
Approach your studies with enthusiasm. If you approach your classes enthusiastically, you may be able to learn more from that class. Hermione has an innate curiosity to learn and better her mind. She approaches her studies with interest, which allows her to better immerse herself.
Value education, learning, and culture. Hermione values these traits in her education. Try to enjoy them; they might even be fun!