Amazon EXPERT: FBA listing and A+ Content set up

I have been doing it myself but Amazon interface is not very user friendly and I donnot have the time to learn it.

I have all content, designs and pictures, I need to set up correctly the following:

1. LISTING:
- Place all pictures, high definition
- Place bullet points and description information

2. A+ CONTENT:
- Set up a A+ Content for each of our product correctly.

3. PARENTING:
- Parenting some products that I couldn't donit myself.

4. ADVERTISING:
- Advertising is already set up, but I need to manage it or set it up differently in order to have sells.

This is our Amazon Store.
https://www.amazon.com/pk