Doing the same shit for 10 years won't make you grow.
I liked that line from a German rapper, which translated reads something like: "If you make hip hop and all you listen to is hip hop, that's like incest/inbreeding".
Guess that encapsulates the whole problem; you need inspiration and inspiration never comes from something you do over and over again. It's like, if you want to expand your musical "vocabulary", you won't achieve that by reading the same "book" all the time.
For example, if I want to make a Hawaiian/"surfer" track, I won't listen to Hawaiian music; I'll listen to West-African music, because it has a similar mood, but uses different progressions and instruments. If I need to make that "epic" chase sound for a scene in a movie, I'll listen to some Arabic rhythms and percussion. If I want to have a "heavy" bassdrum sound, I won't reuse the same 808, but will look for some japanese Odaiko drum sounds, if I need a track that sounds kinda Indian/"Oriental", I will probably find some inspiration in South African rap music, etc...
If you want to go "around the world", musically, then it's not about doing a 360 and arriving back at the same place you started, but about the "journey". And in the end, it's not only about having different ingredients, it's mainly about how good of a cook you are and how you blend the "flavors".