How can I become a famous singer at the age of sixteen soon to be seventeen?

Either marry someone really rich... but ask Pia Zadora... that only bought her 15 minutes of fame... or work your butt off and hope the right people see you... and this assumes you do have that special talent over and above most people... and carve out a style that people will like that doesn't copy other people.

In short... you are asking the nearly impossible... finding that actuall success is not as easy or likely as finding the need in a haystack.

Pursue your dream... but keep something else to pay your bills... because you are going to need it.

If I'm academically ineligible to be in this play I worked so hard on how can I get my way back to perform something I love the most (music)

If I'm academically ineligible to be in this play I worked so hard on how can I get my way back to perform something I love the most (music)
Where do you want to perform?

Why academically ineligible?

I'm performing Godspell and I failed a test in World History

So can you take a retest?

Nope :(