This dream is rich in symbolism and may reflect various aspects of your waking life. Let's break it down:

1. Masturbation and Washing Hands: This part may symbolize a desire for personal pleasure and release, but washing your hands could indicate a need for purification or to rid yourself of guilt associated with that pleasure.
2. Sleep Paralysis: Experiencing sleep paralysis in dreams can represent feelings of being trapped or overwhelmed in your waking life. It might suggest that there are situations or emotions you feel unable to escape from, causing anxiety.
3. Pressure and Panic: The pressure you felt while trying to stand up may symbolize external pressures or expectations that are weighing you down. Your panic indicates a strong desire to break free from these constraints.
4. Mirror Reflection: Looking at yourself in the mirror and feeling scared and nauseous may point to self-doubt or a struggle with self-identity. It could be a reflection of internal conflicts or fears about how you perceive yourself or how you think others perceive you.
5. Calling Your Mom: Seeking comfort from your mother in the dream suggests a desire for safety and support during difficult times. It reflects a need for reassurance amidst feelings of fear or uncertainty.
6. Heart Rate Increase: The loud and fast heartbeat at the end of the dream signifies heightened anxiety or stress in your life. It could be a manifestation of your body's response to the pressures you are currently facing.

Overall, this dream could be urging you to confront your fears and anxieties and to seek support from loved ones. It may be beneficial to reflect on any pressures you feel in your waking life and consider ways to address them. Taking time for self-care and reaching out for support when needed can help alleviate some of the stress you are experiencing.