Nervous in public places. How do I Handle this now?!

Nervous in public places. How do I Handle this now?

Well basically when I'm out of my house & go to public places I'm a nervous wreck. I'm pretty sure it's a social anxiety disorder, but my parents deny it or just say it isn't anything to worry about. It affects my life everytime I go out. I feel as though people are watching me and that their judging me. It's the same thing at school but I try to not let it get to me.
My question is how do I handle this now?

I really don't think I have the time to wait till I grow out of it. I just turned 17 and I think it's been keeping me from putting myself out into the real world.
e.g. Going out to get a job, attempting to get my liscense & colleges. All the things are scaring me right now and my outlook isn't helping.
Another problem is my parents scold me everytime I'm out with them whenever & I screw up with dealing with people on my own. I really try to ignore this because I feel like their screaming at me for something that isn't my fault.

How do I convince them my problem is real?

3 weeks ago
I really think it's unfair for my parents to put so much pressure on me when so far they have done nothing, but tell me I'll grow out of it and basically have to face the tasks ahead of me the way I am now.

I truly doubt that you will grow out of it, afterall you are already 17. You should talk to your parents seriously and if they dont listen to you then take this into your own hands. Schedule an appointment with a local psychologist. You need to be on anti anxiety medication. Seriously dont let this ruin your life.