@zampano
Why the big focus on wanting to feel happy? Why is happiness so important? Happy, happy, happy ... sounds rather childish.
Paraphrasing: "I could be the greatest writer ..." and you then enquire about "if I get nothing out of writing ..." leads to the question: what is your rationale for expecting anything? The world does not owe anyone anything.
"Most problems, if you give them enough time and space, will eventually wear themselves out." (Buddha)
Eh, the Buddhist approach has always been a tad too nihilistic for my taste.