Awesome :D! Glad it worked out for you and I'm sure that was just the first of many to come.
Well, I think your main problem is recall. If you aren't able to remember dreams very often, then it is going to be difficult to lucid dream with any technique out there. I would set my number one priority on dream recall. Lucid dreams will come. There are a few ways to go about this. I would suggest performing a mantra each night before going to sleep. Try, "I will remember my dreams, I will remember my dreams." Be persistent with this and try to do it every single night. If you are able to set alarms throughout the night, do so. It is so much easier to recall a dream if you wake up right after it. Waiting until the morning to recall all of your dreams is pretty difficult, especially if your recall is great at the moment. Keep something at your bedside to write down your dreams immediately upon waking up. If you aren't able to set alarms, try to perform this mantra, "I will wake up after my dream, I will wake up after my dream." This will help your mind/body fully wake up during your micro-awakenings (short periods during the night that you wake up, but likely never even realize it).
You have to stay confident as well. Even if you don't believe it, act as if you are a pro dreamer. Fall asleep expecting to have loads of vivid dreams and don't even worry/think about failure. It is very possible to try TOO hard. Relax and have fun with it. Go ahead and take a week or so off from lucid practice. Give yourself time to completely reset your mind (in terms of dreaming). Then start up with a new found confidence. It is very possible that you just happen to be in a dry spell. It may only take one good dream to kick start your dreaming practice. Just continue to work toward it and do everything you can to keep from getting discouraged. Good luck to you, I know you can do it :D!