I agree, if you have nightmares LD would be an incredibly beneficial thing as far as you being afraid. All of my recent LD's have been in nightmares and having the control to decide to have a new dream entirely, or make whatever was trying to kill me do something goofy, helps tremendously. I'm not a frequent LD'er so I am not the best to answer the post but imho the LD will be only as vivid as the dream itself. I've had dreams where I've only been able to see and hear and nothing else, other's every drop of acid burns and the smell make me nauseated. I wouldn't give up after one go, but its up to you.