"I hope you eventually have gentler standards for feeling like you deserve to be alive," says Bella, "but I hope you also accomplish everything you want to do."
"I do think you'd be better at it than the ones already on the job."
And she gets started on some of the combinations of safe spells, since she's not magically exhausted.
Most of the recombinations straightforwardly and uninformatively don't work. This is to be expected; she diligently writes everything down. She casts a magical detection spell on its own, first, to see if it picks up local phenomena in addition to her knife and her boots, as a control. (Heh. Controls!)
She spends the night, then eats breakfast, collects variously-flavored fruits for Fëanáro, and goes to see if anybody's in the courtyard.
She leaves the fruits on a piece of paper, labeled with their flavors, and then locates Miriel's mind and routes around it on her way to her houseplot to see how that's going.
Ooh! Parchment will be useful when she has more useful than silly spell experiment results. She sifts through the designs, picks one she likes, and wonders how the heck she is supposed to figure out who left it there.
Glass is a traditional window thing, actually. You can make it colors and arrange them in a mosaiclike fashion! ...Also she didn't really invent glass.