Stop mocking who you used to be stop belittling and insulting the child you were for things everyone in the world has gone through: puberty and all it comes with, braces, a bad haircut, your clothes, the childlike things you said. 13-year-old me wanted good friends and hated her acne and wanted better clothes and was terrified of people making fun of her for it so why should i do that now?? I deserved the love and respect at 13 that i do now and i’ll be the first to give it!
if u wouldn’t say it to a kids face today, don’t say it (or think it) about yourself at that age either. being embarrassing isn’t an unforgivable act, so forgive yourself for it and move on