I used to be new to this site, and had 1-2 Lucid Dreams in about 2 weeks, but then I abandoned lucid dreaming entirely, for about 3, 4, or maybe 5 months. I forgot all about it then, but now I am trying again.

See, I'm one of those people who won't do something unless they know it's fine. And I'm terrified of lucid dreaming because of 3 main things which may have been answered before by someone, but again, I forgot almost everything. But I did read up on a few things before I came here again. Here are my fears:

1.Astral Projection, or whatever
This sounds frighting, because I don't want to know any secrets of the universe, ghosts, demons, or ANY OTHER CRAP THAT PEOPLE SAY THEY HAVE SEEN! Floating up into oblivion and out my body sounds otherworldly.

2.Nightmares
I don't want to encounter my fears in a dream. Usually my dreams are foggy and unreadable, the reason I want to lucid dream is to clear up and control dreams, not watch un-vivid, greyed out and silent motion pictures like my dreams are now. But even now, in my unreadable dreams, lucid dreams could be much worse.

3.Unintentional control
This is a fear, but more of a question. I don't know how to control a dream, in a dream, is it controlled mainly by speaking or by thinking? If it's thinking, I may think up something I don't want in the dream, but since I thought of it It would come true.

How do I get over these? If I don't, I may never ever have a true lucid dream. Please help me.