You'd really do yourself a service if you just fixed a snack or dinner, got a drink, and sat down and read the voicehelp hotline. Its all in there.
So you know what acapella is. And as previously stated...the corRAB can only make vowels. Consanants are provided by blocking the vowel after its made with your throat, teeth, tongue, cheeks, and any combination thereof. As I said, you never hear of anyone needing help with singing a tttt or a bbbbb right? The phonetic vowels for singing are: Ay, E,I,O, and U as in boot, not dew and ah. So I was saying practice these because they are the fundamentals. And its easier to isolate things if youre not worried about shaping the mouth and everything for a specific word. And again, I'm not talking about thirty minutes. Just a few minutes. It adRAB up over a while. Just sing them, holding an ay...and rising up in pitch smoothly(gliss) like a siren and back down on one breath(smooth=legatto). then do some stacatto, which would be broken, seperated. Do scales as well...all on each vowel,paying attention to any tension or stiffness you might create,which is a no no.