Let me tell you my experience. I come to know about GPS in June 08, bought my first GPS device in Sept 08. Jointed MFM as newbie in Sept 08. Started learning how to contribute POIs, tracks at the sametime. Started polygon drawings in Oct 08, start POI compilation in Nov08. Start to learn mapping for East Malaysia in Feb 09.
I disagree with your statement of :"don't dreaming lah..i think antyong and his friends doesn't teach anybody in the worlds to be a mappers". I don't know Bro Antyong and Bro Sunn at all when I jointed this forum. Please check
how many mappers we have now compared to other forum.
But I partially agree with your statement of: "...coz they afraid somebody will take their effort to make some mOneytory..." I think not only they afraid, the whole forum community afraid right?
Learn mapping and become mapper doesn't come easy. As everything come easy will go easy. Passion, sincerity, action, loosing

times for couple of days,

...etc are routines for mappers.
No one conducting class or teaching?
Joint GG, many Sifus there can teach you many things, not only mapping.

"Any guidelines?"
Start with polygon mapping, you will learn others when you go along.
read all the polygon mapping related posts here:
viewtopic.php?f=4&t=11viewtopic.php?f=22&t=387viewtopic.php?f=22&t=388viewtopic.php?f=22&t=437&start=0viewtopic.php?f=22&t=538viewtopic.php?f=4&t=284 