We should always believe in ourselves when we believe that nothing is impossible.这句子对吗?

问题描述:

We should always believe in ourselves when we believe that nothing is impossible.这句子对吗?
believe in和believe的用法对吗

believe in 信任.
believe 相信.
所以我觉得应该说相信自己,而不是信任自己,信任一般对象为他人,一般不会说自己.
所以我觉得两处都应该用believe.
另外,这句子这样表达虽然意思对,但不符合习惯.