You just need to be patient, don't expect results with in 3 days It's not as easy as that (for most people), however some get lucids on the night of trying.

If your recall sucks you might want to make a dream journal. Just find a notepad or random book and jot down anything that you can remember from the night before. It can be anything from people, events, locations and emotions. You can even use self-suggestion and make yourself wake up after each dream. Don't worry about being tired if doing this though as you can just write down keywords and then write out the dream later in the morning after looking at the key words.

Dream journals also help out with recognising dream signs too! Any common occurance in a dream can be a dream sign.