When it comes to expressing the act of distancing or isolating oneself, there are several synonyms that could be used instead of "separate oneself". One such synonym is "withdraw" which denotes the idea of retracting from a situation or social interaction. Another common synonym for this phrase is "detach oneself" which implies the act of detaching from someone or from a situation altogether. Alternatively, one could also use the vocabulary of "seclusion" or "isolation" to explain the process of moving oneself away from others or away from society in general. Whether one prefers to "separate", "withdraw", or "detach", the goal remains the same, and that is to establish one's independence and privacy.