Henri Cartier-Bresson said, "Your first 10,000 photographs are your worst." But that was back in the days of film, when people weren't prone to sprayin' and prayin' at 8 frames per second. Today with digital I would guess it's probably more like your first 100,000. 
Susan, to get the 7D to shoot consistently at its max frame rate you need to set it to M, otherwise it will slow down to meter at times. I seem to recall that Auto Lighting Illumination or some other auto procedure will slow down the frame rate, too.
Oh, and you press the AF-Drive button on top of the camera once, but don't hold it down, then turn the back dial to change the frame rate (fps). You'll toggle through five options: Single Shot, High Speed Continuous (up to 8 fps), Low Speed Continuous (around 3 fps, if memory serves), Self-Timer with 10-sec delay, and Self-Timer with 2-sec delay.
You also can press the Q button on the back of the camera, which will bring up the camera settings display on the rear LCD screen, use the joystick to navigate to the correct box (the bottom row, 2nd from the righthand side), and then can use the rear dial to effect the same change (with a description of each setting shown at the bottom of the screen). Or you can press "set" and go into the drive mode settings and make the changes. The Q button/rear LCD screen is particularly helpful in low light situations. The top AF-Drive button is faster, when changing settings on the fly. Once you have made your selection either way, a "half-press" tap on the shutter release button will take you right back to shooting-ready mode.
In addition to "Understanding Exposure" recommended above, which is definitely a helpful read for anyone new to using SLRs & DSLRs (or practically any camera), while at Amazon I suggest you get one of the 7D guide books
to help you learn to fully use the camera. The 7D is a fairly complex, more pro-oriented model that's not something I'd normally recommend for someone new to using SLRs and DSLRs. It's designed with relatively experienced users in mind.
"Understanding Exposure" is very helpful, but not specific to any particular camera. On the other hand, the guide books are model specific. I've been using SLRs and DSLRs for nearly 40 years, but I always make a point to get the appropriate guide book any time I buy a new camera model. It's just so much easier to get up to speed using the camera. I've bought, read and am comfortable recommending those by Michael Guncheon, Charlotte Lowrie and David Busch. Some of the others are probably excellent, too.
Get out of Automatic.
Even starting to use P mode will be useful... you'll get far more options.
Then progress to Av, TV, or Manual as required.
Once you get into the last three, you'll never go back to Auto or Scene Modes again.
I agree, but just to clarify, unlike many other Canon models the 7D doesn't have the highly automated Scene Modes on the mode dial (top lefthand "shoulder" of the camera). It has "the Green Box" and "CA" (Creative Auto) automated modes, P, Tv, Av, M and B, plus three user definable Custom modes (C1, C2, C3). You won't find the "Running Man", "Mountain Scene", "Portrait", etc. scene mode icons on the 7D (or 5D Mark III, 1DX). Scene Modes are only found (in one form or another) on 6D, 70D, 60D, and the Rebel xxxD series cameras. Some newer models (5DIII, 70D) have a revised form of the Green Box, now "Scene Intelligent Auto" mode. The only high automated modes on 7D are the original Green Box and CA. And... just so you are aware... P, Tv and Av found on all models are automatic exposure modes, too (they just don't take over and set a whole bunch of other things, besides exposure).