I have this recurring nightmare where my dad is trying to kill me with a dagger. I can't remember exactly how it starts but from the point where I do remember I am sitting on a metal slide in what looks like an indoor riding arena. My dad is at the bottom of the slide holding this silver dagger and he's trying to convince me that killing me is the best way. I keep asking him "Why? What did I do? Please don't daddy" I never call him daddy in real life, I never have (I'm thirteen by the way). He looks sad, and like he regrets having to do it but then he just keeps saying "it's for the best". I'm really desperate at this point and I start begging and crying, he just says "don't worry it will only hurt for a second" and in my dream I imagine him stabbing me in the stomach. I scream then jump off the slide and run away from him. I eventually find my mom and start begging her to help me, telling her "Help, daddy is trying to kill me!". She just looks at me and says "I know, I'm sorry sweetheart, it's for the best" just like my dad. I start crying again because I trust my mom completely, we're like best friends in real life. I keep asking her "Why, mommy, what did I do wrong? Please help me!" Again, I never call my mom 'mommy' although with her I did call her that when I was little. She just keeps staring at me with a blank expression and does nothing. Then I asked her "Are you mad?" and she says "Yes". I start asking her why she's mad but she doesn't answer, I even screamed at her but she just stared. I ran and hid in some kind of closet then, crying my eyes out. I wasn't scared exactly but I was confused and horrified and I felt so helpless and deserate that no one was helping me. My dad found me and I ran from him again, this time hiding under a table, looking out and seeing my parents eating dinner at another table a few feet away. I'm trying not to breathe, hoping they won't hear me, and then my dad turns around and looks at me and I wake up.

Whenever I have this dream (which has been three nights in a row so far) I wake up really shaken and scared, and I always find that I had been crying in my sleep. My dad is not violent towards me at all in real life, he never even yells at me, usually he doesn't even want anything to do with me (idk why). My mom and I are best friends like I said, we hang out together and tell each other everything. That's why this dream is freaking me out so bad, I'm terrified of going back to sleep after I have this dream, and I really need help.
So thanks to anyone who can help me with this I really appreciate it.