Disclaimer: I admit, I did not use the search function before making this thread, for I'm not entirely sure what I should be searching for!

Whoo. Likely due to a combination of events, the details of which I will spare you, I've finally accomplished an (partial) out-of-body experience (NOT astral projection, as far as I can tell). Albeit very short-lived, the entire ordeal was very faith-building towards further efforts.

My attention was abruptly "snapped back" from wherever my mind was wandering (as has been apt to happen in my close failures of AP, after I have given up for the night), and in the span of approximately five seconds, I felt myself "rising" from the top of my skull--like smoke from a bottle on its side. A very peculiar sensation, which I was content with observing, until I was distracted by a chorus of high-pitched, obnoxious laughter. This was enough to involuntarily abort the whole procedure.
Now, I'm not complaining. I'm rather glad I was unable to have a total success--as if I can't focus enough to overcome something as simple as an auditory hallucination, I have no business traveling about OOB yet. But this is where my question for you all comes in...
Short of pure willpower and/or "getting used to it", are there any potential tips for getting past this first barrier? I'm sure, if the distractions are not purely of my own mind, that a good banishing beforehand couldn't hurt.
Also, any other generic "tips" or whatnot from you APers out there, would be greatly appreciated.

Focus, baby.