The Witches We Are - Felicity Kyle - Bog

Brenn Maren has a good life. A skilled witch, she runs her thriving business from her beautiful childhood home with the help of her two familiars, Charles and Mayhew. Sure, sometimes she's a little lonely, and, sure, being the middle child sandwiched between two highly accomplished sisters can be a drag, and, sure, her parents can be a bit dismissive, but Brenn's doing just fine, thank you.
Until her magic goes...glitchy.

Now, her normally reliable spells are backfiring, making a mess everywhere she goes, and Brenn has no idea how to fix it. On one lucky afternoon, Brenn meets two people who just might have the answers she's looking for: Nat, a mysterious witch newly in town with an open place in her coven, and Audrey, an orphaned teenager with significant abilities of her own.

Now all she needs to do is not screw it up.
If you mixed Practical Magic, Anne of Green Gables, and Gilmore Girls, and added a little sprinkle of Parks and Recreation on top, you'd get The Witches We Are.