The self-blame of rape victims is pointed in the wrong direction.
A self-blaming victim needs to think about predator/prey situations more objectively by removing herself from the equation. Imagine someone else – an innocent, trusting woman who trusted somebody bigger and stronger and was overpowered and violated. Would you blame her? Did her innocent misjudgment justify her being violated – especially in such an intimate way? Of course not. Nor can you blame yourself.
Your anger is your outrage at being violated. To begin healing, you need to direct your anger at the predator who violated you, rather than at yourself.
In addition to Post-Traumatic Stress Disorder (PTSD) therapy, what can you do to empower your recovery? Victims of both stranger rape and date rape can escape the lingering effects of a foul crime by becoming survivors – thriving stronger than ever by learning rape escape options for the future.
Also see many resources at Google's Rape Victims' Self-Blame.