paokz! Too bad the video isn't available.
The last couple of women I was living with to help them out were big Josh Groban fans.
Just seeing the reviews up above have convinced me that trying to imitate him is your problem.
Josh Groban looks like a cute young guy, lotsa hair, clean cut, born with a big big voice.
He's not the best, most note-using or inflecting singer, his big big voice carrying him through.
If you're not really imitating him, you're going to sound worse.
If you came to me for vocal lessons, I'd ask you what artist or band you know the most songs from,
to see where your musical interest is, and how you sing them.
I don't know if you played an instrument while you sang,
but having an instrument to sing with can only improve your sense of pitch and tone.
Have you heard of the vocal facial mask? You should look for a picture of that, and try it.
That's a more operatic thing, and Josh Groban is as operatic as he is Irishinistic.
And if you are ever contemplating a career as a singer, getting out onstage to get paid,
everyone sings in the music business, and no band wants to hire just a singer,
so they have to shut up all the time and just back him up.
When your voice is tired, it's nice to work on an instrument to be a musician.
The American Federation of Musicians don't charge dues for singers,
because they consider them to not be musicians.
Just sayin'.