[neverending]

Ernest Hemingway is one of the most nationally gratified authors

I believe you may mean glorified, or renowed- but certainly not gratified.

In 1940, the novel “For Whom the Bell Tolls,” was published, and then in 1952 his most popular book, which won him the Pulitzer prize, is titled “The Old Man and the Sea,” which follows a fisherman over three days at sea, trying to catch a marlin, only to have it eaten by sharks in the end.

This should be at least 3 sentences.

is based off of Hemingway’s trials and tribulations

based ON his trials...

and vast amounts of unnecessary extra sentences,

one of these words is unnecessary- or extra...

If not for her depression on the matter, she may even repeat him sarcastically,

Repeat him? Or repeat what he SAYS?

the symbolism that Hemingway uses even has multiple meanings all in one

Delete all in one - not necessary.

Good start. Keep up the good work.