the reasons all have run away, but the feeling never did

i want to believe that people can change.
but even more i really just want to yell at them and tell them how much they hurt me, how indescribable i felt.
and how an apology cant ever make up for what they did to me for so long, how they set out to hurt me day after day and in every possible way they could. destroying relationships i had, lying to others, getting pleasure from making me feel the impossible way i did, like i wanted to die. setting out to try and take anything i had away;to the extent where most times they did.
i want to tell them how much all those months destroyed me.
and how it still affects and follows me today.
i never want anyone to ever feel the way i felt especially for as long as i did.
i never want anyone to be treated like i was.

but in the end, should you still believe that
people always deserve a second chance?
can someone who has the ability to treat someone with so much hate, and put someone through what they put me through, also have the ability to change and be honest when they say they forgive you for the past and are sorry?
i just don't know what to do.