Sorry to hear that bro. I know I have had spells were I couldn't get a LD for like a year even while keeping a dream journal and doing reality checks and everything. Its must be pretty frustrating for you. But if you keep trying I think you will be able to do it. However you have to follow people's advice. Keeping a dream journal is a very important aspect. It helps with dream recall among other things. A good technique that helps me is to take short naps in the afternoon / early evening. Usually I will have vivid dreams and possibly lucid dreams with this quick power naps. Also the most reliable dream sign for me that helps me go lucid is trying to read small text. In a dream is always changes and shifts and is a tell-tale sign that you are dreaming. So if you just pay attention to things like that eventually you will wake up in your dreams.