Good evening :)
Here are my suggestions:
"...and some still
remain a part of my life. I value each of them whether they do me good or
have just brought harm to me. They are part of my experiences that
have helped me craft the knowledge that I have. My family, teachers, peers
, and even my enemies were the people who contributed to craft
ing the knowledge that I now have."
You use the phrase "craft/crafting the knowledge" that you have many times; this is redundant, so try mixing up your word choice a bit so that you readers don't get bored.
I hope this helps!
Regards,
Gloria
Moderator, EssayForum.com
Gloria, EssayForum.com