The mind is like the stomach, you should only asks as much as it can digest.
Perfecting and selling your writing is a lifelong task. If you are a persistent writer, you can expect your abilities to improve with time. Success is the ability to go from failure to failure without losing your enthusiasm.
You ask what the aim is? I tell you it is victory - total victory.
There comes into the life of every man a task for which he and he alone is uniquely suited. What a shame if that moment finds him either unwilling or unprepared for that which would become his finest hour.
The question which we must ask ourselves is not whether we like or do not like what is going on, but what we are going to do about it.