Never base life on memories;
life is too short to dwell on past hurts.
The scars it leaves
should be a lesson well learned,
not a barrier around your heart
to keep new love from entering.
It's best to forgive, but never forget,
'cause it will make you aware
of other hurts coming your way.
Love is not supposed to hurt
actually it's the best thing you can do,
when it is done right.

^ Alright so I changed your poem a little, added some punctuation, changed grammar mistakes and obviously the "presentation" of your poems.
Your words are simple, but I do not even mean that negative, I like the fact that you gave me, as the reader, the possibility to understand your poem and the message behind it, rather than leave me thinking for a long while till I am able to grasp the meaning.
I think that the title fits too, but you may remove the exclamation marks, they are not necessary. The title is strong enough as it is, just like your poem.

So overall I think this is a well written poem, that would be even better if you edit it a little.

I agree with jenni making it like that :)

Its an easier read.
But i love the poem :)

Saying how you should forgive but never forget & how love isn't supposed to hurt.
Overall an amazing poem
5/5

More like advise than a poem but it is very true what you write here. Vastly knowledgeable about love, nice job. Makes the reader think and reflect on themselves that is for sure.

Never base life on memories.
life is to short to dwell on past hurts.
The scars it leave should only
be a lesson well learned,
not a barrier around your heart
to keep new love from entering.

Its best to forgive but never forget,
cause it will make you aware
of other hurts coming your way.
Love does not suppose to hurt.
actually its the best thing you can do,
when it is done right.

i hope you don't mind but i copy and pasted your poem, then i reorganized it in stanzas so it is easier to read. i will now re-post your lines with new suggestions to edit to make it even more easier to read. you dont have to do anything i say. but i'd like to help you if i can.

Never base YOUR life on PAST memories.
Life is too short to dwell on MISTAKES.
It Leaves scars that should
only be a lesson well learned,
instead of a barrier around your heart.
That will keep new love from entering.

It is best to forgive, but don't forget
It will help you escape future mistakes.
Love is not supposed to hurt.
It is actually the best thing you can do,
when you do it right.

as you can see i edited a few phrases and reorganized it so it reads easier. i don't think i've changed the meaning much from the original. your words are simplistic, but the meaning and feeling of your heart is here in every word. the more you write, the easier it will be. remember to write just how you would talk. cry out with all your heart, so that all who read, will know how you feel. you should take joy in knowing that you are not alone in this struggle. we are all broken hearted poets here.

keep writing

~Kuro