Repetition In Salat
Only Fatiha and few adhkaar of Salat cannot be changed. If you feel like this then you can recite other adhkaar and combine new Sorahs. I think Allah SWT make it so easy for us Alhamdulillah. Imagine how hard it will be for kids or reverts or any person if He made it obligatory to recite new verses of Quran or different tasbehaat in each Salat.. Allah SWT knows the capacity of his Ibaad. We should be thankful to Him. It is repeated at least 17 times a day but even then majority doesn’t know the meaning of it. May Allah make us among the people who establish (قائم ) the Salah, Ameen.