Yes! Wealthy Affiliate is most certainly an evolving affiliate marketing platform and even if you were away for a few months, you would likely notice a vast number of improvements. This is why it is the most trusted and recommended program in the industry for both aspiring and successful affiliate marketers, because they actually evolve and innovate frequently.
So yes, you can be successful. Wealthy Affiliate will help you with every aspect of your content creation, including how to structure content, how to write in a way that converts/ranks, and they even provide you with an awesome writing platform called SiteContent that will speed up the writing process drastically and check all grammar/spelling (along with a lot more).