"The greatest barrier of success is the fear of failure" - "Courage isn't the absence of fear but rather the judgement that something is more important than the fear".

I don't have time to write a long post now, I can return and write one later if you like. (And I can answer each question one by one)

But really think about these quotes for now and what they mean.

And you should know that if you are lucid and can summon your biggest fear in a blink of an eye, then your control of the dream is incredible and should be praised!

Ok one short but harsh answer for now: A dream is yourself, your personality and if there are fears in your life then embrace the fears because the dream is the best place to get rid of them.

Inlakesh