Good, you pass the first test. Motivation is an absolute essential for getting LDs.
Well, that depends. Sometimes you have clear, vivid dreams, and sometimes you have really foggy dreams. Also, your lucidity itself can vary. Of course, once fully lucid, you can control the various qualities of your dreams, so that’s a small problem.
Yes, no questions asked, period. 
Whether WILD is best for you will depend on what kind of person you are. We have a short guide that may help determine what to try first here. Generally, though, MILD is the best for someone new to LDing.
You do so through habit. Do reality checks throughout the day, whenever you remember to. Also whenever you’re scared, confused, worried, nervous, very happy or angry, surprised, or in any unusual situation. Be scrutinizing even when you can be reasonably sure you’re awake. Eventually, the habit becomes a part of your dreams.
Maybe. If it was a dream and you wanted to check reality, then you were very close.