Due to no sense of smell, I learned to eat based on texture and I can't stand fruit or veggies. I feel so unhealthy! Is there an adequate supplement?

Probably not. Nobody knows for sure, but it is likely that supplements and vitamins won't replace fruits or vegetables in a complete way. You see, fruits and vegetables come in packages of multiple substances; vitamins, proteins, fiber and others. It would be impossible to reproduce the exact "package." better to keep trying different forms of these foods, such as dried, steamed, boiled, blended or dehydrated.