I highly recommend taking a look through the Yale Manual for Psilocybin-assisted therapy [1], section 6.9 is particularly relevant to your inquiry. Some excerpts:
> We encourage you to take an attitude of curiosity and acceptance toward everything that happens during your session. Whatever comes up has some kind of meaning or wisdom that you can learn from, even if this meaning is not immediately obvious.
> You may have bizarre sensations and experiences, and you may experience frightening images or thoughts. These may alternate rapidly. This is normal and does not mean anything is wrong.
> We encourage you to “go with” or surrender to difficult experiences rather than fight them. Approach rather than flee; accept rather than reason away, lean into whatever comes up, including any impulse to run away.
> There are methods for grounding and calming yourself, if you would like to use them.
[1] https://psyarxiv.com/u6v9y/