I walked towards and sunk into an ocean that had sewer waste
Dreams about oceans typically represent our unconscious mind, our emotions, and the vast and unknown aspects of our personality. However, the presence of sewer waste in the ocean in your dream may suggest that negative, repressed, or unprocessed emotions or experiences are overwhelming your subconscious. This dream could be interpreted as a warning that you need to deal with these negative emotions or experiences to avoid being pulled down by them.
Alternatively, this dream might indicate that you are feeling overwhelmed and polluted by the negativity around you. Perhaps you feel like you're in a toxic environment, and it's dragging you down. You may need to distance yourself from people or situations that are having this effect on you.
Overall, this dream suggests that unhealthy emotions, negativity, and stress might be affecting your life. It would be helpful to take steps towards addressing and processing these emotions to achieve a more positive and peaceful state of mind.