What's the wrong with this sentence?What's the hell meaning of ever?I can't comprehend it.

问题描述:

What's the wrong with this sentence?What's the hell meaning of ever?I can't comprehend it.
if you have no confidence in yourself,there is little possibility that you would ever achieve any thing.

paraphrase:If you don't believe in yourself,you won't succeed in anything.
中文翻译:如果你对自己没信心,那你做任何事情都不大可能成功.