I too am a beginner, but I can tell ya what I have learned.
Set your low pitch to 0, of you set it at -2 or less you may push yourself right into the ground. One other thing to think about that I thought was good advise that was givin to me... After setting my low pitch, I made sure that my high pitch was no more than 5 (Instead of 8 or 10). This way you can't take off too fast or too high. You do this by programming your TX. The theory for this is so you only go a foot or so off the ground. I found that it didn't hold me to that, but it did help from going up 5 or 6 feet real fast then coming down faster!
I can't really give ya good advise on the clutch, as I have not had to fool around with mine yet.