Voice actors in the US tend to get payed very little, well under minimum wage, and make most of their money off conventions. Which isn't much either, because voice actors are the opposite of a big deal.
To clarify: there are "acting ghettos" in the US. Unlike Britain, where you have stage actors also doing TV and movie stuff and voice acting for games and cartoons, in the US you are really shoehorned into one type of acting. Stage actors don't really do anything else. TV actors don't really do anything else. And so on. There are different ghettos within the American voice acting industry: anime voice actors (a very small group, mostly concentrated in California and Texas), cartoon voice actors, and video game voice actors, in ascending order of prestige. The now famous video game voice actor, Troy Baker, began his career as an anime voice actor, but now he's too expensive for that (notably he voiced the main character of a JRPG that he voiced over a decade ago, Tales of Vesperia, but his character was redubbed for the PC rerelease, while everyone else's voice was kept the same).
Looking at Yang's voice actress' history, she doesn't seem to be really doing any voice work outside of occasionally coming in to voice Yang for the new season of RWBY once a year, and voicing her in video game spinoffs. That's not typically how American voice actors make money. You need to be
constantly taking on jobs and/or be working a side job to keep afloat.