My best friend's younger brother was cornered by older girls today and punched in the eye— because he wasn't athletic and they thought that made him weak.
Haven, kiddo, let me tell you: in that moment, (any moment,) you were anything but weak. I promise you with all my heart that you are and always will be stronger than all those girls combined. Because even after just eleven years, you know a lot more than a lot of adults out there. You've been the little guy, but you stand up for the little guy, too; and you're honest; and most importantly, you never forget to say "I love you."
And Haven, just remember: no matter what anybody tries to etch into your self-esteem, you are not weak. You are lionhearted, which also means that sometimes people will underestimate you because of how gentle you are.
But don't ever apologize for that. They don't call the lion the King of the Sahara for nothing.