A writer becomes a writer not because he wants to write- he becomes one because he WRITES and never stops writing. It's only through the sloughs of disappointment and despair that he finally sees the light which might take years, decades or a life-time.
Skills alone are not enough, nor grit or tenacity. The other qualities, (indeed I regard these as being more important) he must acquire are patience and humility.
How could I ever call myself a writer? When I read the works of the masters and even those of my peers, I realise that I don't qualify to be among them. Best to regard myself as a student, an apprentice, a beginner and admirer (of all forms of art) and in this realisation I would have no choice but to write, write and write--day and night, if I wish to make any headway.
Yet, I always enjoy what I do--when I write, it's as though I live in another trajectory--I'm lost in time, beauty and wonder, and the external world, with all its drabness and tedium, seems to fade away and no longer vexes me. I become a new being, I have wings, I fly to a realm I've not known before, I am free and exultant, I sing, I dance, I marvel, I LIVE!