Why am I disintrested?

Over Ramadan and after Ramadan, I have noticed a change in myself. I am no longer interested in salah or reading Quran. I am an 11 year old who takes their deen very seriously but I'm starting to believe that my iman is weak because of these factors. I always do my five daily prayers, but I feel I do it because it is a habit of mine, not for Allah. I am often unfocused during salah and am bored, thinking about my life in the dunya. Please explain what's going on so I can strengthen my iman. P.S. Thank you for your time.