Where to apply for a videogame tester job at home?

I'm 17 y.o. male, 11th grade, and I want to make video games. I am also taking cles in high school that might help in the video game criteria. Since most of the time I stay home and baby sit my siblings I might as well be a video game tester at home as I make my way into the gaming industry. Idk where to go and apply for the job and idk any companies that are hiring home testers. I'm also good in math