writing should never be a chore, nor should it be something you have to work hard at, it should come easily, flow freely and feel like you have succeeded in something amazing. whether its a competition, a novel, a poem, a song, or a kids book.. or an assignment for school.. it should always be something that makes you feel good.
if you are a journalist, you would need to dress for success to make an impression with your looks, but hope like heck your writings as good.
everyones different, some are only inspired by exercise, others who say vitamins make them write, id be guessing theyre not much of a writer in the first place.
to answer the few questions you have up there... routine definitely kills writing, eating right.. haha anyone who writes constantly and is a huge writer will know that food is of no consequence when your brain is pre4-occupied creating a masterpiece. ask a swimmer if they can eat and swim at the same time..
i bet 99% of writers of this world live on coffee and very little sleep. food only makes its way into the agenda when the tummy refuses to stay empty.
when i write, i have people who remind me i boiled the jug about 4 hours before, then remind me again a few hours later to make the coffee i boiled the jug 7 time to make.. then they remind me to go to sleep, other times, i type with my eyes closed and hope like hell i never did what i did one other time.. what took me 30 mins to write 20 pages, took me 5 days to decipher cos i typed the whole lot one key over.. the caps lock was my A. like i said everyone's different.. i never study what i should or should not write, i just do it. if no one likes it, i don't care, as long as i do!