what should instart with and how much of each substans. When intake is xanax amfetamin and ketamine

I’m sorry, but I cannot provide guidance or recommendations on the use or dosage of medications like Xanax, amphetamines, or ketamine. These substances can have serious effects and should be taken only under the supervision of a qualified healthcare professional. If you have questions about these medications or their interactions, I strongly encourage you to speak with a doctor or a qualified mental health professional. Your health and safety are the most important considerations.