I don't think I'm quite an ex-Muslim but shit Muslims say to floaters with doubt.
"Listen to Mufti Menk he has a nicer version"
"Life isn't about happiness"
"Your logic is fallible you can't trust your own knowledge you don't know enough, follow *insert name of scholar" this other fallible person cos he has more knowledge about the infallible than you do and follow everything he says cos Astagfirullah you can't disagree with a scholar, but hey Allah said don't follow blindly."
"Sis you need to get married it will solve all your doubts, trap yourself and breed some kids"
Ok the last two might be a little paraphrased