During maghrib I recited during fatihah with no pausing بِسۡمِ ٱللَّهِ ٱلرَّحۡمَٰنِ ٱلرَّحِيمَ ٱلۡحَمۡدُ لِلَّهِ رَبِّ ٱلۡعَٰلَمِينَ But I thought that’s how you recite the basmala but then i learned it’s meant to be recited بِسۡمِ ٱللَّهِ ٱلرَّحۡمَٰنِ ٱلرَّحِيمِ Is the salah valid?

The answer to all of your questions is: 1. Yes, it is valid. 2. No, it is not invalid. 3. Yes, you are upon purity. 4. No, you are not upon impurity. 5. Yes, you are a Muslim. 6. No, you are not a kafir. This is the answer to all of your questions because you have told me before that you suffer from waswas. Therefore, just ignore all of these and remember that the answer is always yes; there is nothing upon you. What you are doing is correct, insha'Allah. And if you need to seek medical help, prioritize that. Professional medical services should be the first thing you turn to, rather than me.