Where can I sing in front of many people? Please singing is my life. I would die if I don't. I never have.?

It's hard for me to find opportunities I can sing to a lot of people. And I feel like i'm suffocating I want my voice to be heard. I love singing so much and I know I've grown really good at it, I think i can do it professionally. But it's only me and my family who knows about this since I've not sung in front of other people. I mean in my 19 years gosh the people who know me from work and school they don't know that i sing like i do. it's like i have two personas. And i realize now i want to be a professional singer or just be able to sing in front of many people and be applauded. My voice has been bottled up inside me for a long time and I want to let it out now.