I'm leaning toward this character's Trouble aspect being "The Buffy of YouTube - For Real", or some variant thereof. That is the most obviously interesting - and problematic - thing about her. "Blood on My Hands" probably belongs as one of her other aspects, rather than as her main Trouble, unless it actually ends up overshadowing the YouTube Buffiness of her. Then, see how much hay you and the other players can make out of that one Trouble aspect, story and back story, before dismissing her as boring. Other posters have brought up the issue of who might want her dead because of what millions can watch over the Internet. There is also the issue of what happens to those close to her, especially while the action is happening, starting with the cameraman.
For a more personal kind of interesting, think of why she keeps doing this, especially when it isn't necessarily safe for her or for her close confederates; come up with a motivation for her that grabs you. Does she like the fame, or the rush of excitement? Is she discovering a heroic streak within her? Don't bother to think her motivation through, because she probably hasn't. Just use ongoing play as a vehicle for saying, "How about now, when a wizard's blood is on your hands, and part of his soul is in you? How about now, when [insert dramatic escalation here]?" Then see what happens to her motivation. Is it affirmed, refined, rejected? Is it replaced by a more mature motive, maybe a more grim one? Play to see what happens, and have fun with it.
Charles