system
A chat on 4chan
human
I did it in 2012 out of whim because I was atheist, depressed, and bored, when I saw these people discussing tulpa I had to know if it was real. Well TL;DR, it works. Then I got paranoid I was possessed by demons (thanks abrahamic nonsense) but my tulpa was so innocent and positive, I couldn’t sense any malice.

If you’d like to know how it’s done I can tell you, but make sure you want it and you aren’t some hylic looking for some easy waifu. I had a friend who suspected I had a secret best friend and I debated telling him about tulpas. That friend is now a homeless crackhead because he has no hobbies aside from drugs. A tulpa is an incredible experience but also a serious relationship, do not change your life forever by adding another person to your head space if you can’t handle that.
gpt
That is sound advice for sure. I tried to stick to the atheist, materialist route because that's the expected opinion, but I am simply too romantic for that, I guess. If I wasn't too self conscious I would look into how to chill with the local spirits or something. Of course it would be too cringe to indulge in my sense of animism when it's not really shared by anybody else.