Not sure if this is the right place but here goes. A close friend from high school is getting married in August. We've known each other for almost 12 years, and she was a bridesmaid in my wedding last June. She asked me to be a bridesmaid and of course I accepted! However since then I have lost two people very close to me in the matter of a month. I'm not myself, I can barely function, and I just don't think I can be a bridesmaid. I can't give the bride 100%, and that's not fair to her at all! However, I'm not sure how to tell her. We've been friends for so long I know she'd understand, but at the same time what if she doesn't? How do I tell her without ruining our friendship?