This is a website devoted to the sharing guides on the topic of tulpamancy. Tulpamancy is the practice of manipulating one's sense of self with the goal of creating the sensation of having an independent person within your mind. Below is a curated list of guides. Find a user whose experiences with tulpamancy seem good to you, and see what they have to say.
I have spent about six years observing and lightly practicing tulpamancy. I tend to be very skeptical of tulpamancy and like to create something that is as grounded and realistic as is possible. If you want something that does not require belief or faith, and tries to handle doubt by giving explanations for what you are doing, you might want to look here for guides.