Spacing On Home Page Is Too Big

Hello. Can you help me. There is a huge space on my home page between the Most Recent and the Map. How can I get rid of this space or narrow it? The other thing that I need to know is how to change the Read More on the Most Recent Videos to Watch Now. I went into the editor and made some changes but they are still there.

I am granting support access for your help with this matter. It would greatly appreciated.

Thanks
Audrey