Martinito

Right now i'm having trouble lucid dreaming. I dream on a nightly basis atleast one everytime. When it is vivid enough or strange things are happening to me i still do not realize i'm dreaming. I can have vivid dreams where i am controlling the dream or flying but its like im just dreaming of the act without lucid dreaming it into the actual act. Any tips?

This is my first time posting, but I had a Lucid Dream only one time and what i remember was nothing short of weird.
I was reading a Stephen King book before i went to sleep, and it was getting pretty gruesome. I decide its late and begin to fall asleep. Now i remember my dreams often as I have kept a dream journal. Yet just as i was starting to dream I realized i was dreaming. This made me open up my eyes and what i saw threw me off. I saw the room i was staying but it looked different, and as i was looking around I kept thinking "WOW i did it im Lucid". Yet as i looked about the room I saw the room as if my eyes were made of glass and had cracks through them with no point of origin. I then got excited and stayed in my bed and was trying to think about something to do. My mind immediately went to the gruesome death i just read about. "No! i thought and tried to think of the next thing, which was Zombies at the time. Before i could think of something else I felt this groggy sound behind me and then i hear almost breathing but choking. I knew I could feel a zombie right behind me just waiting for me to turn around. So instead of turning around i closed my eyes even harder and desperately tried to think of this girl i really liked.
Then i woke up completely and turned around to see no zombie, i believe i scared myself awake.
Ever since this has happened i haven't been able to LD again, but i do have vived dreams and i'm starting to do reality checks all the time.
Was wondering if anyone had any helpful tips to become Lucid again and what i should do for a real awesome experience.