I find that creating a lot of content (quality) is the best way to traffic. I do not have a ton of traffic to any of my sites, but I know that it all comes from the uniqueness of my content.
Also, study HARD SEO. This will help you gain top spots.
Use Word Tracker, Nichebot, or Good Keywords to find keywords that you feel are worth competing for. Do NOT try for ‘Online Casinos’ or something that everyone is trying for. It takes a long time to get the heavy hitting keywords.
That’s all the advice I have.