Basic protections and precautions

This is actually my second post here, and I don’t normally use Reddit so I thought I’d just drop this here incase anyone sees it. I am terrified of harmful entities, and on this sub I keep seeing people telling stories about how they have started seeing visions and doors slamming and creatures crawling through mirrors and it kinda scares me. Although I’d be actually overjoyed to be able to work with those sort of things when I get older and more experienced, I’d love to avoid them for now. I heard of cleansing, locking mirrors, and I think salt helps with protection? However i haven’t come across a full list of all the things I need to set up before I start. For example, if I put a layer of salt at my door will that stop bad spirits from getting out too?? I spent all of my childhood as a very devoted christian so I guess I’m worried that if I start witchcraft it could break down those protections I had as a christian? It sounds kinda silly now that I’m writing it. Thank you so much for taking your time reading this<3 And have a great day!!