what should i do if i am not confident?

what should i do if i am not confident? I'm not confident about myself.What should I do? what should I do if I am a mental patient? what should I do?I am useless I am fool.What should I do? Now,i do not know what i should say .In a word,i am sorry to what should I do if I am impatien person while reading long i am not good at math.ireally do not donw ___ a.what should 英语翻译What should I do next june if i not work hard now What the hell am I doing?what should I do? I am very shy .(A.what if B.how C.if D.what)i do not know an what should i do if you are not here? _____ ask my brother t