Congrats on the first lucid dream!
It's common for first lucid dreams to be short, but as NyxCC said, with practice they will become longer. Stabilization is an useful tool to prolong the lucid dreams and increase awareness, here's tutorial: Dream Stabilization and Clarity Tutorial - Lucid Dreaming - Dream Views
Looks like you have nice amount control as well, keep it up and remember, everything in dream is possible!
Do you have a list of goals of stuff to do in lucid dream? If not, get one and read it a few times through the day and especially before going to sleep, that will increase chances of you remembering to do them in dream. Come up with any goals you like ofcourse, but if you have lack of ideas, we have a thread with lots of ideas: http://www.dreamviews.com/general-lu...cid-dream.html
Good luck!

*Moved to Lucid Experiences*