I am desperately trying to reduce my accent. I read books out loud for 3 hours everyday with Audio books. Please give me any advice I can work on. это звучит нормально?

You are very good! Only three words jumped out at me as unnatural/accented. I will provide a voice recording example of how they should sound, but I will write them, too.
1. Seemed. You pronounce it with a "sh" at the beginning. It should be a clear "s."
2. Suffering. This may be my own personal dialect but I do recommend letting this be three syllables, rather than two. You say it quickly and I almost couldn't quite understand it. Should sound like "suh-fur-ring."
3. World's. You seem to be pronouncing every consonant at the end, like "whoa-er-elds." To make this sound more natural, think whirled or "were-eld."

I will also add that it does sound like you are narrating or reading, which is fine - because you are reading along with audiobooks. If you are going for a more conversational flow to your speaking, then I would recommend finding an American television show to learn the rhythms of conversational English. ^_^