http://5dfcmsgsfemr4n4oea7nryhfc67xcnf7bk6wjvw7q2h4zmcakspby2id.onion/faq_redditulpas.html
Also, while you are growing up, a tulpa should not be a substitute for any of the usual experiences of being a teen. For a complete answer, check this response by metallica48423. Q: Can I have more than one tulpa? A: Yes, you can. It is even possible to make several at once, although the challenges and merits of this are disputed.