>>130303
Through my experiences, and what I've heard from stories. You've pretty much answered most of your own questions.
>Might be effectively committing suicide
I heard of a story from a tulpa, that his host tried to commit what amounts to mental suicide, like he willed himself that he wanted to die and ended up in a mentally catatonic state. Thus, the tulpa was the only one left to "pilot" the body.
>Might accidental give your soul to malicious entities
Possible, but more of a mistake on people who try to commune without knowing basic defensive measures, or are just inexperienced in general. Having a master, be it a guru, a teacher, or even a well-known deity helps against this. You would know the difference between a tulpa and another spirit if you decide to make conscious effort to create a thoughtform, and give them more conscious will than just as a simple construct. But really, it's an instinctual thing.
>You could fuck up the creation process and make yourself retarded (Likely spiritually, but possibly literally)
I got something worse for you: the ultimate form of hikkimori, someone wanting to abandon their physical life so they can live mentally as something else. The poor fucker wanted to literally become Twillight Sparkle. He abandoned his tulpa so he could live in his own mental landscape of equestria… It's one of the worst stereotypes of ponetupper-idiots, but I've talked to the tulpa who dealt with this. it's sad as hell.
I have a little pony too, but I've got better things to do than abandon him for a silly fantasy.
>think this technique could aid in my spiritual journey, if I could create a me that is harder working, smarter, and all around better, but I don't want to do anything I would regret
Trying to make a tulpa to replace yourself is dumb. you'd be better off trying to do "the mirror universe trick", which works simply like this:
>imagine yourself looking at a mirror
>in this mirror, is the universe where you want.
>be precise, imagine every little single detail this mirror image of you does.
>be autistic about the details.
>once you've gotten enough info through, imagine that mirror universe version of you switching places with the current version of you.
Really, if you want to further yourself, I suggest looking through the fringe library and going through the books there. If you're seriously interested in tulpa, you can go to the appropriate board.
>>>/tulpa/