More than 50% of all Hubbers earn less than $10 a month here. Less than 5% earn over $2000 a month. That should tell you something about your chances.
Besides, it would be very unwise to base your career on a website you don't own. Three of HubPages' competitors - Squidoo, Yahoo! Voices and Helium - have all gone out of business in the last year. How would you feel if you wrote hundreds of Hubs, then HubPages closed?
Unfortunately I think you're a couple of years too late to make a living on revenue-sharing sites like HubPages. All of them have struggled to survive in recent years - HubPages seems to be the only one which is still reasonably successful but earnings are still way down on 2010.
In 2010 I knew many writers who made a real living writing online (as opposed to just surviving). I know only two now - all the rest are freelance writing, or offering SEO or website design services, or have had to go back to offline work.
Do you know what SEO, backlinking, keyword research mean? If not, you have a lot to learn before you stand any chance of earning online.