Exactly so. stigweard is right.

"Quavery voice, very iffy sense of pitch, no breath support, raspy quality in the voice."

Okay, let's get serious!

WAV, what I wrote above is an accurate assessment of your singing voice. But—this is curable. I should have actually put "no breath support" first, because that's the basic cause of the problem. With lack of good breath support, a voice will wobble and wander off pitch. And the raspy sound is occuring because the vocal cords are not receiving enough breath passing over them to sustain a constant tone.

If you want to sing, you can't be timid and wimpy about it.

First of all, you need to loosen your jaw and open your throat. Relax your jaw muscles and let your jaw hang slack. Wobble it back and forth until there is no tension in your jaw muscles. Then yawn a couple of times. This will open and relax your throat.

Take a good lungful of air. Breath from your diaphragm. When you take a proper breath, the diaphragm moves downward and pushes your abdomen outward, which is why people sometimes describe good breath support as "singing from the stomach," which, of course, is an anatomical impossibility.   A good exercise for breath control is to take a good breath (but don't overfill your lungs) and blow a thin stream of air, as if you are blowing at a candle flame, making it flicker, but not blowing hard enough to blow it out. As you do this, count:   one count per second, and try to count as high as you can before you have to stop and inhale again. Try for ten at first, then up to fifteen or twenty. This will help strengthen your diaphragm and help you learn to control the flow of your breath, which is essential for singing well.

By the way, most of the source singers, or people who have been singing all their lives, tend to do this naturally. But not everyone learns to do it well, and these folks generally just don't sing.

Sing scales and parts of scales. Here is a good collection of vocal exercises:   CLICKY.   Download them, print them out (including the instructions beginning on page 4), and practice them—with good breath support. And more good information here:   CLICKY #2.

And sing out like you mean it! But at the same time, remember that shouting is not singing. When singing, you should feel the front of your face above and below your eyes vibrating or "buzzing." You can get this feeling by humming an "mmmmmmm." You should feel that vibration all the time when you're singing.

And don't worry:    this kind of practice will not make you sound like an opera singer. Believe me, it won't.

If you're going to do this, you may as well learn to do it right.

Don Firth