Unintelligible Lyrics

I've got lyrics quite not understand in some songs. Here they are:
<EVERYDAY > from High School Musical
'Once in a life time, means there's no second chance...'
Must he repeat the same meaning again?
<PRETTY BOY>
'Never ever loved no one before you...'
So many negations that I can't really figure out how to rationalize the meaning she wants to express. But everyone can be sure about the meaning "you are the first one I love'

<NEVER HAD A DREAM COME TRUE >
"One regret from yesterday that just seem to grow with time"
What 'grow with time' ?
<GOTTA GO MY OWN WAY>from High School Musical
'W might find a place in this world someday, but at least for now, I gotta go my own way'
What kind of place does she want to find? What for?
<SOMETHING NEW> from High School Musical
'Living in my own world, didn't understand, that anything can happen, when you rake a chance.'
I can't understand what kind of relevance on earth are there between the 4 sentences.

I'll let fans of the musical jump in on this one.

First, you are assuming that lyrics are meant to make sense. This is not always the case. Nik Kershaw's The Riddle, for instance, was compiled by throwing together random phrases that appealed to the artist.

Second, you have to realize that song lyrics, like poetry, often invert or simply butcher the grammatical syntax of a sentence, and that words may be omitted. This is often compounded by the fact that modern lyricists, in contrast to famous poets, don't have a great grasp of grammar to begin with. So, you have to translate the lyrics back into proper English before they'll make sense. For instance

"Living in my own world, didn't understand, that anything can happen, when you rake a chance.'"

becomes

"Because I was living in my own world, I didn't understand that anything could happen if I took more risks."