Brooklynn, it's clear that your dream was quite intense and carried with it a sense of urgency and fear. Being chased, especially in a familiar setting like a friend's house party, can signify feelings of being pursued by something in your waking life that you're perhaps trying to avoid or escape from. The man with the dart gun represents an aggressive or threatening aspect of your life. This could be related to a situation where you feel targeted or under pressure, maybe a conflict or a challenge that you're currently facing.
The fact that you ran to your house across the street in the dream indicates a desire for safety and comfort. Your home is often a symbol of security and self, so trying to reach it can reflect your instinct to retreat to a safe space when faced with stress. However, being shot right before you could enter suggests that whatever you're dealing with might feel inescapable or overwhelming, as if it's catching up to you despite your efforts to avoid it.
Finding yourself in a big empty garage and searching for your parents to say goodbye, but with no one around, could point to a sense of isolation or a fear of not being heard or supported. This emptiness and your reaction of falling to your knees and screaming can be a manifestation of frustration or a fear of facing something alone. It's possible that you're seeking support or validation in your life that you're currently not perceiving, which can be quite common in young adulthood when there are many transitions and the pressure to make significant life decisions is high.
The intensity of the dream and the negative feelings it brought up suggest that the issues it represents are significant to you. It's important to reflect on the aspects of your life that might be causing you distress and consider healthy ways to address them. Remember, dreams, while vivid and sometimes unsettling, are a way for your subconscious to process what you're experiencing in your waking life. Finding ways to manage stress and to navigate the challenges you're facing can often help in reducing the intensity of such dreams.