Trying to develop a Webstore

Who knew it would be so difficult to open a webstore on Amazon.com.
I have been working on this for about a week now. Getting more and more frustrated all the time. It looks so simple... who knew it would be such a pain in the ass.
Ugh.
I downloaded this little program to upload my inventory to the site. There must have been 20 items in the program. It uploaded 3.
The webstore looks wonky and I don't know how to fix it. There are widgets for this and widgets for that. Store widgets, page widgets, this, that and the other thing.
I have no patience for this. I thought it would be so easy... blah. Wrong.
It can't be rocket science.
Do I just have pregnancy brain?