help adding ‘load more’ button

Hi, I’m new to WordPress and can’t seem to figure out what info I need to pull from a section on my site to create a ‘load more’ button. The video tutorial is tough to follow in another language. My website is https://www.icapturehomes.com and I have an image gallery on the home page labeled ‘our work’ that has 100+ photos that I’d like to create a button for so the end user is not constantly scrolling forever on my page. And secondly, how do i customize the look of the button to mimmic what my ‘book now’ button looks like (and centered)? Any help would be greatly appreciated! ?? TY

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