Does anyone else feel disconnected in salah sometimes?

Salaam. This is honestly making me feel really guilty lately. A lot of the time, I pray because I know I should, but I don't really feel that spiritual connection inside. I see others talk about feeling close to Allah in their prayer, and it makes me worry-am I doing it wrong, or maybe He isn't accepting my salah? I've done some pretty big sins in my past, and sometimes I think this emptiness is my punishment or a sign I'm not forgiven. It's scary to think about where my soul is heading. I really don't know what to do anymore. If anyone has advice, I'd appreciate it. Jazakallah khair.