Omg I'm just like you lol. I'm Bangladeshi too, born in the US with immigrant parents. I learned Bangla first actually and mostly learned English from cartoons as a kid. Then I was admitted into extra English classes as a toddler. In kindergarten is when I started getting into the hang of English more. I'm a few years younger than you but I'm more strong in my Bangla when I have to speak because my dad and I talk in Bangla at home, while my mom is pretty much comfortable and mostly fluent in English now. So I feel like I'm more comfortable when I speak Bangla, at least with family. When I'm talking to friends, even if they're bangladeshi too, I just talk in English and it's pretty okay for me. I'm completely fluent and my grammar is good, even when I'm writing essays. But I WILL stutter a lot in English and I do have a lisp when it comes to certain noises or saying two words in a row that start with the same letter. And when I read English out loud, I am a stuttering mess and I just can't lol. When it comes to Bangla, I can't read it but I do stutter when I speak, only because I don't know every single way of speaking in Bangla. There's still things I struggle with explaining in Bangla, so I'll stutter, or my brain takes a few seconds to think of a word. I'm also fluent in Italian although I don't study it anymore, and I sometimes stutter in it too, but I don't really speak it for me to worry about it too much.  When I read Quran, I also stutter. A LOT. 1. Because the Arabic is so tiny so I have to wear my glasses 2. Because I'm just not fluent in Arabic or used to elongating what I'm speaking like Arabic does. When you read Quran and stutter though, don't feel bad or embarrassed. I think it's really normal for those of us who didn't grow up learning Arabic or how to read the Quran earlier in life like our parents did. Allah swt still rewards us.