Need help with my thesis for english.

The thesis statements I came up with are:

1. Mark Twain was one of the most iconic authors of the 19th century, but he came from humble beginnings. Mark Twain was greatly influenced by the death of his father and his curious personality led him to the many life experiences that shaped his writing.

2. Mark Twain’s working life started at just age 12 when he had to help support his family after the death of his father. Mark Twain had a peculiar personality, which led him into many different lines of work. The events of his life led Mark Twain to write “The Adventures of Huckleberry Finn”, which went on to be one of the greatest works of American literature.


My supporting points are:

1. The death of Twain’s father greatly shaped his life, and in turn, his writing.
2. His peculiar personality led to life experiences that shaped his writing.
3. Everything in Mark Twain’s life led him to write the iconic book “The Adventures of Huckleberry Finn.”

I don't want to redo my whole outline so I'd rather just change the thesis based on the points than the other way around.