I've been hitting evil spirits and encountering dirty things recently. What can I do to avoid them?

Go to the temple and ask for an amulet! I must tell you first that anything that has not been polished, whether it is jade beads or Buddha beads, is just ordinary jewelry! It is only effective to put a big knife beside you. My mother put a knife beside me a long time ago, and it's okay to post pictures related to Buddhism on the door. You can ask the people in the temple to help you find out what this is. Maybe it's your family. Is it too dark and humid? There must be sunshine at home, and the lights at home should be on. The more the merrier! I wish you peace!