I am so mad

I am so mad today, i just find out that my mom knows i have Instagram account, because my older sister told my mom and my mom got mad at me for having one its only social media account i have to keep in touch with family and few friends i know, i wish my older sister didn't say anything and i am not posting pictures like very sexual or anything like that and my mom told me how long you have your Instagram for. I told since 2021 and i am very upset about my older sister and i am sad that i need deleted my ig account to lost contact with people i know. I keep quiet when i have it, i didn't tell my mom about all these years. Plus my profile is lock no one sees my pictures just close family and friends and i am losing trusting my older sister.