My deepest condolences on your loss. I think we can all relate that the death of a pet is very hard, especially after all the time you two spent together.
I have only had Mandy for a few years, but I know of a couple different people with over-30-year-old conures. One woman has a blue-crowned who she had from a young age and is now over 30. Also, two other people each have cherry-headeds who are in their early and late thirties, respectively. However I don't know how long each of these folks actually owned their birds.