Do I sense a bit of doubt in you?

People can lose themselves but I doubt that is happening to you. Maybe it's just part of growing up. You just change. You suddenly realize how tough the real world is and that your choices will greatly affect your future. Maybe your subconscious is just trying to point you in the right direction.

Besides, what is wrong with changing the profession you want to take up in college? It happens to almost everyone. I presume that you have contemplated enough to know what course you really want.

As for your friends, it is all right to let them influence your decisions provided that they know you well enough. However, you must never let them make your choices. They may know you but they can never be you.

With that said, I think there's nothing for you to worry about. I know you well enough to say that.