You must have patience, Jawad. If lucid dreaming teaches you nothing else; It will teach you patience. Just continue and be persistent. Always write what you remember. Write it down even if it is just an image or emotion. Are you on any medications? Sometimes certain drugs will hinder dream recall.

Another thing to thing about... I have found that no matter what pre-bed food or supplements I use it has NO effect for me. BUT when I do it with WBTB my recall picks up and I am more likely to have lucid dreams. Most people have very short REM cycles the first part of the night so there are fewer dreams to remember anyway. So, maybe try apple juice or whatever after 4 or 5 hours of sleep, stay awake for 30 minutes, and then go back to bed focusing on remembering your dreams.