A banish ritual can be easily done. This can help with protection, and banish negativity. Here is a small banish spell.
1 black candle or/ 1 white candle
1 cup of water
1 cup or palm of salt
1 small piece of paper
1 candle jar holder
1) cast a circle, state your reason(cleanse with water and salt)
2) Light the candle
3) Imagine yourself back at the negative scene, imagine yourself then banishing the negativity
4) Write your thoughts on one small strand of paper. Next write on another paper the following, ''I have endangered myself,and negativity has overcome me, please gods above(or elements) help me, let me face my demons, and banish thy negativity''
*Note: I made this spell myself, years ago*
Next burn the paper that holds the feelings(burn the paper). After say, ''negativity is gone'', next then grab the written piece of paper, and burn it. Watch it burn, and say, ''Negativity is banished'' after leave the paper burning until there gone, snuff the candle out.
Most importantly, think positivity instead of negativity. Good luck.