Is it normal that i see myself in the 3rd person all the time?

That is the only way to see yourself because whenever you think about yourself it's a memory. Even if you're thinking about yourself right now it's a very very recent memory. Because of that the only way to think of yourself is in the 3rd person. The only time 1st person comes into play is literally your immediate experience. Beyond that the term 1st person is used to describe different perspectives in writing.

I used to be like this when I was younger. Whenever I thought about myself doing something I would think “she did this." I thought something was wrong with me, but I don't do it anymore. I just stopped after a while.

How can it be wrong? Unusual, perhaps, but not wrong - it's just the way your mind works. I do it myself from time to time, much more when I was younger. Is it really ALL the time with you, though? I doubt it - you'd have a hard time giving anything your full concentration if it was.

Try smoking some Salvia - who knows where you'll end up!

Yes, I think I do that too (if we're on the same line :P). It's like almost believing there is another 'you' living at a different time - the past and the future.

It's very interesting!

When I dream, I see myself in a variety of persons... It's quite hard to explain:/

I only temporarily saw myself in third person in a dream i had.

I don't think it's normal, but it sounds pretty cool!

It's not normal. See a doctor.