Hi Yaya!
Congrats on you results!
That's great progress and I just got inspired to join you and try this again - although I might not keep it up for 30 days like you...
Apart from that, have a few suggestion for you!
First, whenever you encounter vivid images or clear sounds, just imagine floating out of your body or rolling out. If you just keep watching, most likely you will fall asleep. But if you imagine floating, it is very likely that you will separate your dream body and a full blown lucid will begin - it happened to me once and I intend to try this again!
Also, don't avoid OBEs! You can easily turn them into lucids once you are out - and I'm my view, they basically are lucids in the first place. This way, you are just missing opportunities!
Anyway, keep it up and I will try to join!
Btw, seeing very vivid images does not equal having a LD, but your trials are very interesting nonetheless...