Yes, you are correct. The age of modern humans, Homo sapiens, is much older than 5500 years. The first appearance of anatomically modern humans dates back to around 300,000 years ago in Africa. Fossil and archaeological evidence supports this timeline, and it is widely accepted by the scientific community.
There are even older human ancestors, such as Homo erectus and Homo heidelbergensis, which predate Homo sapiens. For example, Homo erectus, an extinct species of early humans, lived as far back as 1.9 million years ago.
It's essential to differentiate between modern humans and our ancient ancestors when discussing human history and evolution. As research continues and new discoveries are made, our understanding of human evolutionary history may be refined, but the consensus remains that modern humans have been around for hundreds of thousands of years, not just a few thousand years.