That said, the subject has come up several times in the past few weeks, so I thought I'd talk about it here. Scrying, as a practice, is an area where there are many right answers and a few wrong ones, primarily because there are certain methods that just aren't particularly wise. I will, herein, focus on how to get results.
If you're having trouble getting results when scrying, I would recommend that you procure a small glass bowl from the Dollar Store and paint the backside of it black. Once that has dried, paint the following sigil at its apex:
From there, simply meditate for a few minutes and focus on turning on your spirit-sight, then gaze into the bowl and look for what you intend to find. Record your results and repeat as necessary.