welcome operationgold, Glad you could join us and congrats on the LD!

I would say that definately was a lucid dream, and was not just luck. It sounds like you are working on good reality checking habits and MILD can be quite effective as you may just have discovered. You tried to induce Lucid Dream, and succeeded = it was not luck!

And the better you become at observing and reality checking the more you will have, especially if you can simultaneously work on MILD.

also,
Have you tried/heard of Wake-Back-To-Bed WBTB techniques?
Because these greatly increase chances of MILD occuring.