It is hard to know what will resonate as I do not know your history. I'll offer a few general thoughts.

Sometimes we fear success because it marks the completion of a creative period. There can be something quite sad about letting go of our creations. It can generate a void type feeling while we are in a period of reflection upon our creations. I'll use the seasons as a metaphor. We often enjoy the fall because we harvest the fruits of our labor, but we also know the winter comes next. Not to worry though if we hold the perspective that winter is the necessary rest period that makes way for spring. If we look at life in cycles and use the seasons as metaphors for creation in our lives, spring and summer are expansive and fall and winter contract or are depressive by nature. None of it is bad. It is our choice of how we view and experience it.

Success also often causes one to be in the spotlight. Some are fearful of success for this reason. They do not like to have their work on display and this occurs for various reasons. Sometimes we carry shame and do not feel we deserve the spotlight. Sometimes we love our creations so much we cannot bear the thought of others judging us and tearing apart our images of what we have created.

Also, success often comes with expectation to create again and to do more or better the next time. This pressure can weigh on us or depress us.

Just a few thoughts.