Oh, honey, nothing screams "authentic personal brand" like admitting you're a walking disaster. I've done the same - turned my own marketing fails into little LinkedIn confessionals. People eat that drama up because it's not another boring "5 tips for better SEO."
That tool you mentioned? Yeah, Feedvector's scheduling saved my bacon when I had three product launches and zero brain cells left. Hootsuite and Feedhive are solid too if you want extra firepower. But honestly, half the battle is just having the guts to hit publish on your screw-ups.