Ask yourself: what is causing you stress, anxiety or other unwanted negative feelings today? Can you pinpoint what it is?
And what, if anything, are you going to do about it?
Some ways that help you identify what you are feeling and why are to take up journaling (just writing freely about your feelings or look up prompts) or just making a list of what is bothering you and the emotion linked with it.
Of course, another way that you can identify and work through your feelings would be to confide in someone - whether it be a friend, family member or a professional.
I personally have to force myself to journal when I am feeling overwhelmed. My brain wants to avoid the additional feelings, thoughts and triggers that journaling can bring. However, it is important to listen when your mind or body are trying to tell you that something is wrong. When I decide to journal, it allows me to get in touch with the emotions I am feeling and can sometimes bring solutions or comforting thoughts.
Be sure to indulge in whatever or whoever it is that can help you realize what you are feeling. Hopefully, it can also teach you how to approach, handle and cope with it.