How many tables is too many/not enough?

[iB3TuCA11]

Ive been playing online on and off for the past few years. Mostly small stakes(.05/.10 and .10/.25). About a year ago I put $50 bucks in my account and within 4 months I had built my roll to $800.I was playing 1-2 hours a day, 1 table and at those small stakes. At this time I was between jobs and had to take out my money to pay some bills.Im about to deposit some money to my account and was hoping to make some real money$$$.Ive heard that some people play 6-8 tables at a time. Is playing more than 1 table mandatory to becoming a succesful online player? If so, how many is too much? Also, my goal is to make around $500 to $800 a month Does this even sound doable at these smaller stakes? Any insight would be great. thanks