Your dream is rich with symbolism and reflects deep-seated fears and emotions. Let's break it down:

1. The Doorframe: This can represent a threshold or transition in your life. You may be facing a decision or change that feels overwhelming.
2. White Tablets and Drugging: The tablets labeled as mints could symbolize a façade of something that seems harmless but is actually dangerous. This may connect to feelings of vulnerability or fear of being manipulated or harmed by others. Your reference to your father's death due to drugs suggests a personal connection to the theme of addiction and loss, indicating that you may be grappling with unresolved feelings about that experience.
3. Chase: Being chased in dreams often reflects feelings of anxiety or a desire to escape from something in your waking life. The fact that it’s a group trying to harm you can symbolize feelings of being overwhelmed by societal pressures or expectations.
4. Supernatural High School: This setting might reflect feelings of adolescence, growth, or a part of you that is still navigating the challenges of youth. It can represent feelings of being out of place or not fitting in.
5. Calling for Help: This shows a need for support and safety. Your partner’s absence in your time of need may indicate feelings of isolation or fear that you may not receive the support you desire.
6. Exhaustion and Seeking Escape: The fatigue and the desire to find a portal or escape signify a need for relief from stress or anxiety. The imagery of sitting down indicates a moment of surrender, possibly reflecting your current emotional state.
7. The Gym Mat and the Nylon Tunnel: These objects may symbolize places of safety or comfort. However, the idea of hiding could reflect feelings of helplessness or the desire to avoid confrontation.
8. Physical Reactions Upon Waking: The shaking and racing heart indicate that the emotions felt in the dream were intense and carried over into your waking life, suggesting that these fears or anxieties need to be addressed.

Overall, this dream points to significant fears around vulnerability, loss, and the need for support. It may be beneficial to explore these feelings in your waking life, perhaps through journaling or talking to someone you trust. If these feelings persist, consider seeking professional support to navigate through them.