I was at a random girls house and this red shapshifting monster worm and it was in the form of her dad and it tried to kill me
Dreams about shapeshifting monsters or animals often represent changes or transformations happening in your life. The red color may indicate a sense of danger or warning associated with these changes. Alternatively, the monster could represent a fear or anxiety that is holding you back from embracing these changes.
Being in someone else's house can suggest a feeling of not being in control or out of place in a particular situation. These feelings may be intensified if the house is unfamiliar or random.
The fact that the monster takes the form of the girl's dad may suggest that you are struggling with authority figures or feeling threatened by someone in a position of power.
Overall, this dream may be reflecting feelings of fear or anxiety due to changes or transitions happening in your life, combined with a sense of being out of place or threatened by authority figures.