The anger you feel might not be real.
The four “primary colors” of emotions are:
Virtually all other feelings come from some combination of those.
However, anger can actually be a mask for sadness or fear in order to avoid feeling vulnerable.
To understand which is which, know that both anger and fear are “protective.” However, where anger pushes others away, fear causes you to move away. (Sadness indicates a need to be close.)
When you’re feeling sad, mad, or afraid, take time to understand what you need first. Then, respond appropriately.
By the way, if it’s “glad” that you’re feeling – enjoy it and share it!