It’s true that both anxiety and worry relate to the future but the similarities end there. One of the key differences between anxiety and worry is that worry is about a single, specific situation, whereas anxiety may impact several situations that fall under a common theme. For example, my anxiety impacts me when I am in the company of new or unfamiliar people.
If you find that you are experiencing anxiety one of the easiest ways of identifying it is by recognizing that you may think everyone can visibly see you are anxious. With worry the sense of everyone seeing you are worried does not feel like a burden but with anxiety thinking others can see your anxiousness is draining and actually feeds into your anxiety. There is a sense that you want to hide it at all costs.