How can I bring more focus into my salah?
Assalamu alaikum, I've been praying my five daily prayers and some extra ones (not showing off, just saying). But I often feel like my mind isn't fully there, and sometimes I catch myself speeding through the salah. Even though I finish the fardh, right after salam I get this scary thought: "Was my prayer even valid? Did Allah accept it? Should I re-do it?" It's really bothering me. Any tips on how to improve my khushoo and stop these doubts?