Hi I am a 16 year old junior in hs. I am 6'5 and at a good weight. I have been having a lot of trouble with girls lately. I have what you would say is a shy personality in public. For example in school I am usaully quite and laid back. I talk to some girls but I am really not my true self. I am only at my true self when I am with all my good friends. I do get good reactions from some girls. But most I do not. I think some of the reasons girls aren't attracted to me is bcs I am freakishly tall compared to them. What do you think it is that or its bcs I am shy?

Sixteen year girls can be fickle, and at that age a shy guy isn't usually the guy that gets the girl. They want to be swept off their feet, like in the movies, because they don't yet realize the importance of personality, kindness, etc.

You are tall, but most girls like tall guys. The shyness you can overcome, with work. I know it's hard to just go up to someone and say hi. Fear of rejection is something most people go through at some time in their lives, but, what do you have to lose?

Go up to a girl, just say hi, ask her how she is, maybe ask her if she'd like to go to a movie, or try to arrange a group date with your friends and some girls. That's a great way to get to know other people without having to make one on one conversation.

The worst that can happen is that the girl says no. If she does, it's her loss. :)

Most girls like tall guys and you may be encountering shy girls as well.
As you begin to feel comfortable with yourself you will feel more comfortable with others.
There are plenty of people who don't attract everybody or those they want to attract. That's life.
You do attract girls, focus on that rather than who you are not attracting. See the glass half full instead of half empty.