Okay, another thing - you could use your talents (passion, your voice, confidence) to recite the Quran and learn and memorise new surahs. Once again, you could help your friends do this too
and do it all together
It sounds like it's not the singing part of being a singer that takes your fancy. Tell me if I'm wrong, but I think you feel the inspiring words and actions/role model for younger girls/doing-what-you-love part is what you really love. And it's so totally good and true. Money isn't what life is about, not one single bit! You want to do what you love no matter what it is money-wise and just enjoy it. I do admire this about you, Dreamer. And don't ever stop dreaming, okay.
You could start a blog, and write little nuggets to inspire people, I know I've read very inspiring things on blogs and my prayers go out to those sisters who wrote them inshaAllah. It's not hard, just make an account on Blogger or Wordpress, (though I think Blogger's easier to use) and decorate it how you want. Then you can write, or post images or videos, or even lyrics/poems. It starts off small, but who knows how many people may read it and feel inspired.
You know Allah plans for us and He is the Best of Planners. If you think Him as this, He will be this. And there are so many occupations and lifestyles out there you can't just pick one and be it. Your lifestyle will be completely unique to be honest, and if you keep these principles, these desires to fulfill your dreams - if you continue and fight to keep that, then you will enjoy whatever you do. But your enjoyment isn't the most important thing to you is it? The pleasures of Allah subhana'wa'ta'ala is so much more important. Whatever you want to do, do it for Him and His
I can see you being someone who can change the world. Honestly. If you have the intention and willingness to commit in what you're doing, to remain steadfast, then you can do it and you can shine inshaAllah.
I feel privileged to have cyber-'met' you, because your willingness to inspire, has inspired me. Keep going, girl. And no matter what anyone says, stay steadfast to your Deen - and trust Allah no matter what happens.
I know you will shine, inshaAllah. So smile (: