Queen Camilla admitted she is “trying to hold King Charles back” amid the monarch’s cancer treatment. The Queen revealed the King was “thrilled” to return to royal duties this week and joked that she had been “trying to hold him back” during his cancer treatment. Camilla, 76, spoke about the monarch’s dedication to his work during her reception at Buckingham Palace to relaunch the Wash Bags Project. The monarch, 75, returned to public duties on Tuesday after doctors said they were pleased with his progress following his cancer diagnosis in February. On Tuesday, King Charles, who has been a pat…