This depends on quality as well as quantity.
Firstly, with an authorscore of 34, you won't be that successful presently because you are 'no follow'. This means your links are not linked for Google to follow. You need to be above 74 to attain a do follow.
You need to be active in the forum and the community. Read other people's hubs, and participate as fully as possible.
Whilst writing your hubs, which also helps your authorscore, you need to take full advantage of all the capsules HubPages offer you - photos, videos, text etc. These are great ways to improve and create good content. It is on page optimization that is the trick here - with good keyword research. When you produce good hubs and you have an authorscore of 75 and above, you will find traffic will come naturally.
I have produced a nice hub on on page optimization. You are welcome to take a look: