<em>I think we soulden't punish ourselves.However,when we do something wrong,we must just try to correct it and make sure that it'll never be repeated from us.When we don't achieve something we want,we must try not to feel guilty and bad.We have to keep trying till we do it. Punishment isn't for ourselves because it won't help us to improve our lives. We should be wiser and try the best we can do not just to be hopeless.Any way,this is my opinion!</em>