how do i make him feel appreciated?

so me and my boyfriend are like total opposites. he doesnt care much in school but i care a shit ton. ever since we've been dating (about 7 months), hes walked me to class and done all kind of stuff, and i try my best but i dont want to be late to class, etc. but now he told me that he feels like he's not appreciated :( what do i do?? i'm planning on writing him a cute letter every day, making him a cute lunch tomorrow, and walking him to class more. what else should i do? (please note i'm 15 so,,, nothing too 👌👈 haha)