Well, it means you want to fall in love. Maybe you already have a goal, but you are a little scared. Being tackled by a dog but hiding behind a friend shows that this friend makes you feel safe, but it also shows that you are insecure and have no courage to face the problem. The long-haired girl actually represents someone in your subconscious, and this person makes you very annoying. The rest may be solved according to your recent events. You are a student, so falling down represents a decline in your studies to some extent. You may need to pay attention.
By the way, be careful of villains recently.