Why do you need to use social media to blog your life ? If it makes you so anxious, then just leave it well alone. Its not a necessity in life to write down everything for the public domain, I don't share my life on the likes of FB, many others don't.
Why does it matter that the guy you've booked might become famous and you've logged that on social media ? I genuinely don't understand your obsession with celebrities/ possible celebrities and treating famous people as gods.