When I started with SFI,my expirience with writing articles was bellow zero.
Then I research all articles written in Training section,Ask SC question and answers related with this topic,after that I started writting my own ads .
Great place for getting help is on TripleClics ,where you can by some great books about writting articles.
There is so many places where you can find advices,so research,research,read,ler and apply.