Hi Julie,
I noticed you've been with WikiTree for less than a month....... It's great you're working on your sources so soon.
When I first started, I wasn't at all familiar with the WikiTree "Code" used in writing biographies. This included the "code" used to properly imbed sources.
I don't mean to tell you to be sloppy, but your skills will evolve and if you're not to the point of writing biographies, you might just consider listing the sources when you're creating the profiles. For example, Allen-16972 is a profile where I just listed the sources and now plan on imbedding the sources into the biography when I write it. https://www.wikitree.com/wiki/Allen-16972. When I tried to use more advanced methods of imbedding sources before my skill level improved, I didn't like the appearance and ended up redoing it later anyway.
Also, WikiTree volunteers has written a "code" for Find A Grave sources......... just insert the proper memorial number in the following "code" WHILE IN EDIT MODE..... {{FindAGrave|13689561}}
McReynolds-158 is an example of sources imbedded in the biography that I think is well done: https://www.wikitree.com/wiki/McReynolds-158 but she didn't have to use the same source multiple times...... if you don't want to continually repeat the same source, there's a more advanced method to avoid it........ but don't short circuit yourself, hopefully you'll be fine tuning your profiles after you've gotten your basic information posted.
Just my approach...... there are certainly more skillful members that have answered your question.