how to add subscribe and custom sub menus?

thank you for helping my problem.

Today I have a few problems thanks for your help.
My website: thegioicoin.net or cryptonews.vn.
1. My default homepage is about to hit a big grid and a block 11 below. I would like to design the homepage just like the homepage of https://www.coindesk.com. There the Big Gird on contains the typical posts. But these articles will not repeat in the blocks below.
2. I want to edit a bit on the sub menu. When dragging the mouse will drop in a straight line and the corner as coindesk.com
https://www.screencast.com/t/FwxSVsx5VAjI
3. I want to increase the width of the page, and the sidebar with the background color separator. At the same time, the wigets will be aligned with the same size of margin.
4. I want to create an article with a calendar table to insert events in my favor, can I use pulgin or any support tool?
https://www.screencast.com/t/ZnFesAH8Rz
5. I want to create a subscribe section so that visitors of my page can leave the email and I can automatically send new posts to them.

I look forward to your excellent and enthusiastic support staff who will help me.
I am very thankful!