Could you please check my sentences for grammar mistakes and word choice?
I, an avid reader, state with complete cofidence that The Freedom Writers Diary is the most inspiring book I have ever read in 42 years of my life. If the author succeeded to help her students find hope and rebuild their lives, then I am convinced that there is no life test that I would fail to pass in my personal life. Her presentation, I know, will incalculably enrich my life and solidify my conviction that impossible is possible.
thank you very much for your help
Knjiga