Load more posts!

Hello! Hope you’re great! I’m not at the moment. And I think I have to take a pause from this soon. I use both Masonry and Infinite Scroll in this “blog”. Here is the code. https://pastebin.com/6L9XCq6h.

Here is my problem;

When I want to load more posts, I only get the same posts as already loaded. And I know I have to fix a pagination. I have been working with this for a couple of hours now, and don’t get it to work. Anyone who know how to add the pagination within the if-clauses without destroying the masonry, infinite scroll and getting a couple of error-codes. I don’t think I’m even close to fix it. But I don’t want to give up the masonry/infinescroll-style of my page. So I hope someone can help me. Excuse me for my maybe bad english and explanation. If I forgot to tell you something, just drop a line, and I will try to answer. Have a nice day! ??