I don’t think you understand how serious this is. The callous way that you formulated your question just shows us how much you didn’t know, nor think about the ramifications. You are young so I think you misunderstood but from now on this is what you need to know:
Your counselor had to vouch for you. Your school backed you up. The counselor, (the school), loses integrity. The high school and the university have a broken trust.
That university doesn’t have to admit any future students, from your school, because they associate your behavior (lack of good faith) with what future students may do.
It’s a big deal. The universities don’t like being lied to. When you sign a form committing to ED, no matter what, you are signing that you will attend (it’s like handshake on a deal). You are backing out of a legal contract.
The universities have a clearing house for information on students. They can choose to develop and flag your name. They might not do that, but if you don’t get an internship, or you don’t get into grad school, nor get a job interview, you’ll never know if it was because your name was flagged.
You’re not an adult yet, unless you’ve already turned 18? The minute you become an adult, and you sign anything, or ANY form, you are responsible to complete your part of that contract. You can no longer say, “Well I didn’t know”.
Our adult children (30’s) still won’t sign anything without us reviewing it. This includes job offers, credit cards, purchasing cars and purchasing homes. Your signature as an adult, via electronic or virtual means, is asking someone to have faith in you and to trust you.