There is no telling your future but from this one post I think you may find yourself more successful than you think. The fact you have realized that you are unhappy where you are is a big motivator to change that. Look at what you are planning on doing, studying abroad is a big step. It may not feel like it to you but it is.
I agree with all the other posts that comparing yourself to others is fruitless because you are not them. But if you really want to do something spectacular then go for it. What that is ? Who knows? And you don't need to know right now. Just go out and learn about as many different things that you can. You never know where good ideas come from. Also meet as many different people as you can one big factor in doing great things is knowing great people. It will also make your experiences much more broad and interesting.
Say 'yes' to doing crazy (though non-life threatening) stuff
Take a class in some subject that you find really weird and/or uncomfortable
Ask for help when you need it.
Take a weird job
quit the weird job
Find a passion
find others that have that passion
get bored with that passion
Ask out someone that you think is wayyyy outside your league
I could keep going but its all great experiences and you will start to notice that you are caring less and less about the success of others because you are living your life.
Sorry for the rambling, but honestly this random internet stranger is actually quite envious of you and the life you have in front of you.