If you dream of X, ie the capital letter X, it usually means it marks a spot or gives you the location of something. Details in the dream will give you clues about what you have to pay attention to. The “X” marks the spot, and calls attention to something.
Sometimes, the X is the marker to indicate a choice. Like when you are required to fill out a form, You may read instructions to place a tick or cross in the boxes to indicate your choices.
One dream interpretation of the X imagery would be that you expect to make choices on certain issues.
Another dream analysis may suggest that your attention is called to issues where you are required to tick or write a cross at the checkbox, to indicate your selection.