Oh Paahi, don't give up. We are still young, there are many years ahead of us to plan, strategize, and execute goals. Many years to figure out what drives us and what our passions will be. You are such a limitless and beautiful person, it will only take time and clear vision to travel in the right direction soon enough.
What were you studying in school? I understand that those type of environments can be especially uncomfortable when it comes to anxiety, from my own personal experience.
I think goals are very important, even if they're small ones -- not even related to anxiety. Once you get into the habit of setting small goals and accomplishing them, you will feel better. You can then start creating larger goals with new determination and strength. It's a process that will help you in the end, I am sure. I will help you.