Your not going to get a well paid voice acting job period unless your already a major actor or actress working on a big motion picture. Voice actors make peanuts.
According to SAG, your likely only going to earn $760 for a single 4 hour session. Even big names in the business usually don't crack $60k a year.
Compare this to a celebrity, who can easily pull 5 figures for a single session.
This is part of the reason why major voice actors tend to do conventions ALL. THE. TIME. Appearance fees and merchandise are how they supplement their income between jobs.