You might be waiting a long time. The Dark Brotherhood doesn't have the same 'kill innocent person' prerequisite to join as it did in Oblivion.
I managed to get to level 50 before making another character, myself. It's ridiculous how easy the game becomes with maxed enchanting and smithing: alchemy in Vvardenfell v2.0. Here I am, herp derping into any encounter, screaming at my double enchanted weapons so they attack faster. Dragon Priest side quest? Trollolol. Fighting people with silver weapons as a werewolf? Trollolol. Groups of giants? Trollolol. Forsworn with max archery decided to take out his bow and kill me in one hit? What.
Forsworn > Alduin. ಠ_ಠ
I managed to get to level 50 before making another character, myself. It's ridiculous how easy the game becomes with maxed enchanting and smithing: alchemy in Vvardenfell v2.0. Here I am, herp derping into any encounter, screaming at my double enchanted weapons so they attack faster. Dragon Priest side quest? Trollolol. Fighting people with silver weapons as a werewolf? Trollolol. Groups of giants? Trollolol. Forsworn with max archery decided to take out his bow and kill me in one hit? What.
Forsworn > Alduin. ಠ_ಠ
Comment