用英语写了几个句子 求看

题目

用英语写了几个句子 求看
Life is a long journey.
•We all don’t know what is going to happen.•
All we need to do is keep going and try harder.•
And you’ll finally see the lights rising from your heart.•
That is called satisfaction.

答案

第二句想表达的如果是我们都不知道,要用None of us knows
第三句要改成is to keep going and try harder
第四句语法上还行,不过从你内心升起的灯是什么意思?