If you keep asking yourself "how do I lucid dream" then something that you need to do is your research!
Before you start a task or anything research is mainly required to try making sure that you can get it right the first time that you go through it.
Knowledge is power and by learning as much as you can about a subject the chances are you will hardly make any mistakes or you will know how to solve problems when you walk into them.
Places such as this blog are useful sources of information but there are plenty of articles and sites and other sources that you can use as well so make sure that you have a thorough look around.
If you are still finding yourself struggling and asking the question "how do I lucid dream" then something you can do is email someone about it. Many people that run sites and blogs have contact details where you can ask them questions, even writing in the comments section is effective for that as well.
Things like this are highly useful for helping everyone out and if you are someone who owns a site then try helping people out where you can as there are chances that you too were once in this position.