Reason I ask is because every time I use indents the paragraphs end up all on the left side in a straight line but if I space the paragraphs it doesn't.
Times may have changed in recent years, but I would think that Google Docs is not at all useful for publication. I've used it to write documents at work, and it offers annoying little control over formatting. Furthermore, there is no feature to “export” to another file format. And any publisher will want a file they can hold locally and manipulate, not a URL that can’t be input into their publishing software.
I suggest getting the free Libre Office. And don't worry about the formatting per se, but rather make sure everything is assigned to a named style, not applied directly. This will let you restyle for nice PDF or ebook, or generate the double-spaced typewriter output that traditional publishers want.
I would highly recommend you follow your publisher's style guide. Often a publisher will have a specific manner in which they would like your manuscript laid out. In fact, some publishers won't even accept you if you don't follow it. It is instrumental that you check if your publisher has a specific manner in which they want you to lay out your work as well as how strict they are on it.
I also suggest you stop using google docs. I almost chuckled when I read that because Microsoft Word is the better and more accessible option. Google docs offers very little flexibility in formatting and in my opinion, is a bit frustrating to work with, perhaps because I have a poor internet connection though.
In short, you should:
Consult a style guide
Switch programs. Use something better than google docs.