A book where someone wants revenge, gets it, and feels great about it

None of that "Oh I've been chasing the people who murdered my family for years but now I realize I should take the 😇 high road 😇 and let go ❤️" shit. We're taking the road to hell here. The main character isn't "letting it consume them" or some such limp moralizing like that by keeping their fire and seeking their justice. No empty feeling or "it wasn't worth it..." after the deed is done. I'm here to cheer for them getting back at whoever wronged them a thousandfold.