Unfortunately, yes. I was in the same boat as you about 10 years ago - In college, I was on my way to All-American status in rugby and possibly a spot on the national team. It may seem like your life is over now b/c you can't return to something that probably defines who you are, but life does go on. Once you heal your brain, you will find that there are many sports out there that you can participate in that are just as rewarding. For example, I run half marathons and marathons, and none of the contact sports I did when I was younger were as satisfying as finishing a marathon.

Also, it may seem trivial, but you should also lay off the sports that aren't considered contact as well: softball, volleyball, basketball, baseball, etc. b/c there is a chance you could be elbowed in the head, or have a ball smack you in the head, or fall and hit your head, etc...

But like I said, there is a slight chance your brain could heal enough to allow you to play soccer again. But the probability of this happening is so slim that I wouldn't count on it.

The main thing to worry about now is telling your parents and getting into some sort of rehabilitation program. Like I mentioned earlier, your brain is still developing, which means you have a high chance of recovery. Your brain is still in the process of developing neural stem cells at a high and constant rate, and you need to take advantage of this while you still can.