Dad is the representative of the male image in your mind, and chasing your "ghost" is the repressed emotion in your subconscious. You say that you like a boy, which means that you need someone to rely on emotionally, so the image of dad appears in your dream, which is a subconscious comparison. I don't know where this depressed emotion comes from, but you should be aware of its existence and try to dispel it, so it smells a little fragrant and so on.
There is a feeling that you lack experience in dealing with emotional problems and are a little timid. But for girls, redundancy is not a bad principle, and they are young. It's ok to make more ordinary friends of the opposite sex. There's no need to rush to find a home. Good luck.