将如下段落翻译成英文，并保持原意不变：
彼得有些沮丧，因为他的朋友告诉他不要去做某件事情。他感觉到，他的朋友并不完全信任他的判断。这种感觉侵蚀了他的信心，以至于他开始质疑是否应该继续坚持自己的想法。
user
Peter felt somewhat discouraged after his friend told him not to do something. He sensed that his friend did not fully trust his judgment. This feeling eroded his confidence to the point that he began to question whether he should continue to stand by his own ideas.
assistant