关于一句英文的语法解释
Something really,really bad happened to me,something that changed my life in ways that,if i had my option, it would never have been changed at all. And what I learned from it is what,today,sees to be the hardest lesson of all.
问题：1"in ways that"是不是引出下面的if从句?
2“and what i learned from it is what”中from it is what 应该怎么解释啊?