House of the Dragon season 3, episode 3 entirely revolves around the newly ascended Queen Rhaenyra attempting to rule the Seven Kingdoms, though she's faced with a myriad of problems, from the big (the treasury is empty), to the small (the Red Keep is overrun with rats).
Across the runtime, we see the queen's grip on her composure slackening as the reality of ruling sets in – especially when, in one moment, she mistakes a servant for her son Jacaerys, who perished in the Battle of the Gullet.