Betreff: EBook Licensing, Conversion, Images

I forgot to ask. I'm having some difficulty attempting to convert my book to a Kindle eBook- and format it according to Kindle Direct Publishing requirements. I've used a Word Doc, but the pics and text/shapes were displaced. I tried a PDF. But I had similar issues, but mostly with the page cover background. 

I spoke with the Senior Kindle representatives, tried the tutorials, watched videos, and researched to no avail. I've also reached out to Fiverr, but for some reason my email is locked out. Needless to say I need simple step-by-step instruction and live person to figure out what other program can convert/format my Word Doc so that Kindle will accept it. I do have some mild cognitive disabilities, so it's a little more of a challenge for me. 

What software would be the easiest? Is there a different program, other than Word that I should be working within. Does Adobe have an eBook publishing program or software?

Thanks.