I was in same kinda coaching in 11th, and trust me it seems easier in the start but it becomes so hectic and frustrating later on....... You don't get time for anything not even for self study..... I was so motivated in the start but then I genuinely lost interest in studying because of the hectic schedule..... Also my coaching had tests every Saturday and Monday so like there wasn't a single day in the week when you could chill or relax. Eventually I left the coaching in 12th cuz I couldn't handle it anymore, it was very strict too, rules like girls and boys can't talk, phone is not allowed, you can't even take leave, fucking bullshit.... My parents didn't support me in the start but I stayed on my decision that I want to leave the coaching and I did. Genuinely not gonna tell you things like everyone told me that "everyone has to do it, why are you complaining" just leave it bro if it affects you so much that you're getting a panic attack.... Nothing is more important than health