If you have difficulty with writing, do not conclude that there is something wrong with you. Writing should never be a test of self-esteem. If things are not going as you want, do not see it as proof of a flaw in your subconscious.
Most poetry won't be read even five years after it's published, let alone 20, and definitely not 100. Most poets won't find their work growing more and more noticed; they will find it growing less and less noticed, until it vanishes entirely from everything but a few water-stained notebooks in a cardboard box in the basement.
Why I write, sheer egoism. It is humbug to pretend that this is not a motive, and a strong one. Writers share this characteristic with scientists, artists, politicians, lawyers, soldiers, successful businessmen--in short, with the whole top crust of humanity.