I've been working for about the same amount of time. My first job was right after high-school working in an office, where I was hired because I was fluent in a second language and they needed help translating documents. Slowly, during times when I was not busy, I fixed the office computers, redid the LAN setup, and built a Linux firewall to share an internet connection. I also built a CRM database on top of Microsoft Access that became central to everything the company did. About 10 years after I left I ran into an old coworker that was still there and they told me they still use that crazy Access DB.
When I found out, that moment was as close to being proud as I've ever been about something I've done in this IT field. There were other brief moments when my team has won some award, or I've given a talk at a conference and received positive feedback.
But all of this pales in comparison to me being proud of the spouse, parent, and friend that I am to people in my life today.