I was pleased to receive your letter. I can see why you might be attracted to Copywriting and I will share with you how and why I got into the business.
First, I am passionate about language. Second, it is fun to use big words that your "normal" friends don't know. Saying words like "vicissitude" sends your normie friends into a fury because they feel dumber than you. Copywriters, as a rule, are superior to those around them. Remember that.
If you are not incredibly good looking, give up your dream now. I mean, model good-looking.
We tend to be deeper than most. Start feeling your feelings if you haven't already.
Now about this business of breaking into Copywriting. How do you do it? You fight. You knock on doors. No, kick down doors. You call up strangers. Be everywhere. Have "Eye Of The Tiger" playing in your mind always.
My final (and unoriginal - check out Writing Down The Bones) thought is this: when you get to second grade start telling people that's what you do. You write. You are a writer. Be a stubborn little bastard about it. That is what you do, that is your profession. They will doubt you, Susie. They will say, "Emily, stop robbing convenient stores..." Er, wait. They will say, "You're only 7 years old, you can't be a writer and here's why your short story sucks." Then you kick them in sweet spot and run. Run like lightning, grab your pen, and write like you got somethin' to prove.
I hope this helps, young one. Keep it real.
Yours In Pen,
Emily, the Philly Wordsmith