While Queen Elizabeth II has been cutting back on her royal duties and allowing the younger generation to take on more responsibility, she's still making hundreds of appearances each year. Her full calendar for 2019 hasn't been released yet, but we do know she'll make her annual appearance at Trooping the Colour, a public celebration of her birthday, on June 8.
There are also a number of other events each year that we can expect her to attend, like the Windsor Annual Horse Show and the Chelsea Flower Show in May, as well as the Braemar Gathering in September and Remembrance Day events in November.