Time blurs all the memories and yet a single word would bring them all back and crush you under its weight.
Now you don't have to blur all the memories, you just have to blur those words in order to move forward.
Remove those words from your dictionary and throw them away. Now your life has to content itself without those words.
Try to fill the removed words with new words and make sure you don't have to remove them again.
Life is a culmination of removing and adding words, willingly or unwillingly.