Edit Latest Post (Homepage)

Hello,

I’m new to WordPress and I have the Modality Theme. I have been able to customize it but I don’t know how to edit the actual homepages which is coming from the latest post. I need to edit the page to be able to move sections up or down, I want to remove a few buttons that do not have a function.

Also, I need to add 2 extra services to the page and lower the image on the right hand side to be centered with the services on the left.

This is my website: https://floorcarecrew.com/

Can anyone please help!