There are many old topics with useful advices.
I joined this forum at (my) lv2. After reading (and asking) almost all the previous posts of the forum, at lv5 I had 90% of the knowledge I have today, at lv14.
Unfortunately most of the new members of the forum don't read the old posts, just check posts of previous 2-3 pages and just making new posts/questions about their case.
* Although, I can see some new members who are active, reading and they improved a lot their knowledge.