Read the Bible and learn it for yourself. There are no other guarantees. In this life, good does not necessarily come to the good or bad to the bad. See also the book of Job. The King James Bible is perfect and no other translation should ever be read.
Translations are human efforts and all are imperfect.
The King James is more imperfect than most. The lie that the KJV is perfect is perpetrated by those who don't know how to translate, don't know the history of translation, don't know the manuscript history, don't know the original languages, and who prefer to think that modern scholars are all idiots and part of a conspiracy. Such people are welcome to their delusion, but I've got a bridge I'd like to sell them. The Bible gives answers for all the questions you might have. Try using your Bible to rebuild your carburetor.