Genes are not destiny. They are not even the “cause” for depression. The environment where you are raised along with a host of other non-medical reasons contribute equally. A retrospective study of 2.2 million people in Sweden attests to this. Some of us in the mental health field have been saying this for decades. My book, Raising Depression-Free Children published 14 years ago was based on this.
If you are struggling with depression, DO NOT stop with medicine. Get mental health services and as Catholics, get spiritual direction.