If you're obsessively playing video games, skating, or watching anime and neglecting your obligations and the people in your life, or they're otherwise having an obviously negative impact on you, then reconsider. Otherwise, play on, skate on, watch on. Same with watching South Park and listening to 21 Pilots. What's a stumbling block for one person can be a stepping stone for another, so what really matters is the effect. If you feel these things are beneficial to your life (you enjoy them; you connect with friends through them) then explain that to your aunt. They're not inherently wrong. I would suggest that out of consideration to her, you try to minimize watching and listening to things that bother her when you're in her presence. It will also just help to cut down on arguments.
