@Aya dh ,
Dears,
You should know your dad is just want to protect you.
You are his daughter,he will trust you forever.
He just have a little tense about how to educated you.
For his way,I think there have problems.But in China,Dad always have the authority in the family.Even they make a mistake,the children have to follow.
In your case,my suggestion is that you should communicated with your Dad for calm.You should let him see your boyfriend and let him know how great he is.
You Dad trust you forever just because you are his daughter.Believe me.
By the way,teenager 's love maybe is not true love.Focus on your study is better.
Best Wishes to you,honey girl.