Until a person can sit still and meditate for more than a few minutes, you literally will not have the concentration or mental stamina for internal psycho or soul diving much less ever doing it on any one else. I know that a lot of people have trouble meditating, I have my martial arts background to fall on with that when I was younger. I used to sit on my floor with some music to help me concentrate, close my eyes and just feel myself falling down into my core.
An easy meditation technique, close your eyes and picture only a candle flame, concentrate on nothing but that. If you still have problems or that just isn't how you work, try using a real candle in front of you and concentrate on the flames. make sure you have plenty of time so as not to be interrupted. Eventually, a person can meditate even with lots of distractions. I'll be sure to post this in the meditation post as well.