When do most people start preparing for SAT?

I am planning to give SAT but I feel like I’m too late?? Like when do people actually start preparing for it usually?

You’re not late . Most students in the US start prep around 10th grade, some even earlier if they’re aiming Ivy League. But real prep usually kicks in 11th grade. You still got time if you plan properly. Tons of free SAT prep resources out there too — like Khan Academy and stuff.