Place of memories

As i keep remaining my history and talk about it every once and awhile all i hear " why do you have to remember all that ? " as i keep getting older i realize how important not to forget who i was or what i did or remember how good i was and all the sudden the person who promised me to love me was the one who turned me into a monster ...it might be hard for some people to believe whatever i say and some think i just think too much or i just lost my mind ...i did lose my mind couple times and i had a wake up call from someone very close to me yet so far out of reach ...my point is never forget your past even the bad memories because we learn from what happened before