Can a Muslim live his life 100% as a Muslim while continuing to coexist and interact with his society, staying away from all that Allah has forbidden and acting upon what He has permitted in His Noble Book and the Sunnah of His Prophet?

A Muslim is not infallible, and mistakes are bound to occur. However, a Muslim can live in a conservative Islamic society while preserving their faith to the best of their ability, in compliance with Allah's saying: "So fear Allah as much as you are able." Their faith is not affected by unintentional mistakes, or mistakes resulting from an erroneous interpretation or a fatwa inconsistent with Islamic law. It is incumbent upon a Muslim to fear Allah to the best of their ability, to forbid what Allah has forbidden, and to strive in fulfilling their obligations. If they err, they must hasten to sincere repentance.