Feeling Limited By My Spouse

I would like to join a program that is subscription based for entrepreneurs to build their business. I am having problems convincing my spouse to get on board with the idea. She is worried that I will lose faith, ultimately fail, go into a depression, get overwhelmed, and she lacks the emotional strength to support me if any of those things happen. She is worried that the money will be wasted. I’m not letting her actions drive my model, but at the same token, we are married/business partners, and share a revenue stream. Thoughts?