Keep trying!!!!!
Even if it takes 10 years, don't stop because being Lucid is amazing! It will come to you eventually no matter how long.

Also something I did that seemed to work (That I need to start doing again) is wearing a rubber band around my wrist, and every fifteen minutes snapping it against my wrist, ask myself if I was dreaming, do an RC, and look around and asked myself if everything was normal.