The High Priestess represents spiritual empowerment, intuition and inner wisdom. The card reflects a situation where there is an atmosphere of calm and reflection, where you need to take time to reflect on yourself. So, it seems you are already aware of the need to make changes in your diet to improve your health. However, you may need to take some time to consider what changes to make and how to proceed.
The reversed King of Wands indicates a time of confusion and emotional turmoil. While you may already understand the importance of diet for your health, you may be confused as to which is the best way to go. You may also feel insecure about your ability to embark on a new diet or adopt a new routine.
In conclusion, it seems that you are aware of the importance of diet to improve your health, but that you may need to take some time to reflect on what changes to make and how to proceed. Additionally, you may feel insecure about your ability to embark on a new diet or adopt a new routine. Therefore, it may be helpful to speak to a health professional who can give you advice on how to undertake this process safely and effectively.