I’ve discovered I possess a large number of different talent

I've discovered I possess a large number of different talents and skills that I never would have .
I've discovered I possess a large number of different talents and skills that I never would have thought were within me had it not been for my being open to trying new opportunities.
I possess a large number of different talents and skills that I never would have thought were within me had it not been for my being open to trying new opportunities.是宾语从句,
that I never would have thought 是定语从句,定talents and skills
were within me 是什么成分?I

这个句子可以这么分：
1.I've discovered I possess a large number of different talents and skills；
2.Had it not been for my being open to trying new opportunities,I never would have thought the talents and skills were within me.(这是一个虚拟语气had it...would...)
从后面这个句子可以看出,were within me是指talents and skills were within me .