Translation exercise again,I will give my answer later.

Translation exercise again,I will give my answer later.
你应该进精神病院去,简直不能相信某人这么天真愚蠢.醒醒吧,回到现实中.
please translate this sentense into English.Thanks in advance.
Your ansers are OK,but I don't know the word asylum,so my tranlation below is
You need to be mental hospital.Can't believe some one could be so naive and stupid.Wake up and join the real world.
I don't know whether my answer is correct,I hope some one can help me,thanks again.