Congratulations on your first lucids. My first lucid was somewhat like yours. I realized I was dreaming and it was the strangest feeling that I have ever felt. Once I knew I was dreaming I started to panic and I instantly woke up. Some of my best lucid dreams have only lasted 10 minutes. It's hard to stay focused on the reality that you are in a dream when it is indeed so vivid.

Keep up the good work though. Just keep trying and your lucid experiences will become more interesting with the more you have.