Hi
First of all, it's possible, you know.. you can teach yourself, but forget it, the best thing you can do: get a teacher.
You can manage to learn by yourself, but that way you wont have the tips your teacher will give you, the experience he has... He follows every thing you do and he just makes it the best he can, and the results are great.
I have a piano teacher, and my level increases each day. So... You know, you need to know if things are going ok...
I hope it helps.