I went to a modern university and if I could go back in time and get to choose again based on what I know now, I would most likely choose to start a business. Maybe it is not too late for me, just need to finish paying my student loans

By Catholic business, are you talking about a business in line with Catholic moral teaching? or a business that only caters to Catholic interests? Just curious, I think there is room for both but I would not start a Catholic book store, for example.