Points and earning are entirely different from each other. The points let you get member ranks assigned to you. The member levels unlock newer features for use with this website.
As for the cash credits are concerned, it will solely be dependent on your quality of your contributions. Your Ask Experts questions/ answers, the articles posted by you on the site and other contributions fetch you cash credits. The accumulated cash credits make up your earning from the site.
I would suggest you to improve your language skills before embarking on a earning spree. Even if you have great ideas, failure to present them in a proper language can cause you to lose out on the quality aspect.
Live....and Let Live!