I'm the so called popular kid that's also a massive jerk and I can't express my feelings but that's just what people think I am. In reality I'm just a 17 year old boy who's the nicest person ever and is insecure about himself

It's the first night of summer break and I'm sitting on a bridge with no intention when I here yelling coming from a house and I hear glass smashing. I know it's my neighbor but I know there daughter is in my grade, I just don't know who she is