how do I tell my parents to stop forcing me into believing?

I deeply apologise if what I’m going to ask if offensive or insensitive!

I’m a teenager and ever since birth, my parents had always sent me to church and Sunday school weekly. I always dreaded attending Sunday school when I was a kid because I felt exhausted and bored easily. I was also forced to join the church choir which made me spent more hours in church practicing hymns and etc. I felt like going to church had made me lose my own freedom and my entire day is just spent in church. As a student, I felt extremely burdened and couldn’t manage my time well since Saturdays were filled with piano lesson and church youth groups. Moreover, I’m having high school finals soon and I definitely feel so stressed about how to manage my time well since I’m not someone who is academically smart. My grades are currently very terrible and I can’t even make it to the school that I want to attend.

I struggle with believing in Christ and even became rebellious towards my family when I’m being forced to go to church. I feel absolutely guilty and not worthy of attending church because I’m not a “Christian” that truly believes. I was forced to believe by my parents. I want to be a freethinker. Furthermore, my church keeps having talks about not supporting LGBTQ and I’m actually starting to open up that I’m bi/les. I feel like who I am as a person does not really align with what my church believes and I really cannot continue to attend church as a “believer”. I’m actually more concerned because there’s going to be a young adults baptism soon and I absolutely do not wish to be baptised.

Again, I would like to apologise if my words have offended anyone. I’m just trying to share my own experience and I do hope someone can help advise me in what I should do next!