Yes, sin has separated us from God and we cannot make up for our sin by bettering ourselves or doing good works.
لا تياسىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىى ىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىىى فرج الله قريب من غير عمليات