Ha - I've been researching my family history since 2008 and I've been active on WikiTree for almost 4 years now, and I'm still learn new things all the time. I believe that we're all just at varying degrees of novice. :)
WikiTree provides for some flexibility in citing sources. Here's a profile that is an example of what I generally try to do: Courtney Charles Alexander Peterson. I believe that it conforms to the WikiTree guidelines as I understand them.
For profiles that have more than one or two sources, I generally try to use the inline sourcing method, so that I can show for each fact mentioned in the bio which sources support that fact. I prefer to abstract many of the sources that I cite, and include the source abstracts in a Research Notes section. I believe the source abstracts can be beneficial for sources that: aren't online, are online behind a paywall, and for any online source, when the web link eventually breaks.
The above profile shows the use of the Find A Grave and several Ancestry.com External Link Templates that are embedded within the source citations. If you're not a logged-in Ancestry.com subscriber, you won't be able to successfully access some of those links, but the Ancestry Sharing Links should be accessible by non-subscribers and the Find A grave link should also be accessible by anyone.
There are also some examples of DNA confirmation statements in the profile.
It's still a work in progress (like many profiles here). But I always start by sourcing a profile, to make sure that I'm not creating an unsourced profile. At a quick glance, several needs are to expand the bio based on the sources to date and to add more categories.
Again, this is just what I typically try to do. Your mileage may vary. :)
Edited for clarity