I am an entertainment industry manager and I have to tell you that the industry is merciless. Ask yourself why you really want to get in it. If there this is the only, absolutely only thing you think about and can not even picture yourself doing anything else, then and only then, would I say pursue it.
Otherwise, know that practically anything else that you try other than the entertainment industry, your success is guaranteed dependent on your hard work and not giving up.
In the entertainment industry, you could be the best singer, the best actor, and work really hard towards your goal and never have one job.
So if you choose to pursue it, please know that there will be lots of "NO's". If you want to improve your chances, write your own GREAT music or partner-up with a great song writer. Record a great album quality Demo. Also work on your image. Make sure you have your own unique look. And do all kinds of wonderful research on the net. GOOD LUCK (you will definitely need it.)
I myself am a singer, dancer, song writer, producer etc...
MAUI
www.maui3.com