Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

You are writing it out, which is important in helping you to find the better balance as you process your grief in both sadness and joy.
Anxiety is natural and it is your helper. To get it back into 'helping' mode, you will have to find what works to help you find the calm in the moment.
Practice even breathing. Stop, pause, breathe, option/choice, repeat until calm and clearheaded.