Major Shirk,Minor Shirk

Salam my name is Bilal and i am 12 years old and i have been swearing on my family members like my sisters and my parents and sometimes on allah too like people say i swear but i just learned minor shirk and i am scared that Allah will send me to hell please tell me if i repent Will Allah Forgive me I did not have intentions to commit minor or major shirk and i want to know what are the ways i can repent for it and will my repentance be accepted