Жизнь Джоди Митика изменилась навсегда в 2007.

1) Жизнь
In modern Russian the hard sign ("ъ") isn't used at end of words. It's used only between prefixes and roots, wich begin with the letters "я", "е", "ё", "ю".

2) Джоди
Why Годи?!

3) Джоди
This name is borrowed and has atypical construction ("и" at the end of name), so it's used only in nominative.

4) Изменилась
Passive voice (страдательный залог). "Изменила" means "It [Jody Mitic's life] have made changes".
By the way, if sentence have no passive voice the word "изменила" is right, not "изменило", because "жизнь" is female.

5) Навсегда
I think it's typo: the key "д" is near "л" on a keyboard.