Everything I didn't say

Sometimes we don't realise things until we can't do anything about it. Our heart tells us something, but we are too slow to understand it in time. Sometimes you just wish you could rewind the time and change what you did wrong, but as you know, things you've done will forever be done. What if one day, a person are willing to forgive you for everything you've done to them, would everything still turn out alright?