Hi Jennifer and Welcome to WikiTree.
You might want to take a look at this page with links to WikiTree Help Pages, tips and hints on using GEDCOM files to add your tree to WikiTree's One Global Tree.
GEDCOM File Usage Primer
I have loaded thousands of names to WikiTree and once you take the time to learn GEDCOMpare, I think it is just as fast as manual additions to add new Profiles. I loaded many when I first started and now I am going back and updating them to Family Search sources where available. Easier to view sources for folks who don't have an Ancestry membership.
Learning to use GEDCOMpare and also learning the styles and policies of WikiTree at the same time can be a little daunting. I always suggest you manually load about 20 to 30 Profiles to learn and get the feel of WikiTree and then start using your GEDCOM files. If a name you already entered is in your file, you do not need to Merge that name with the existing Profile you created.
Here is one of my older (2017) Profiles I have updated: It is an Open Privacy Profile so you can click on Edit to see how I formatted it.
As with any new program, it takes a little time to learn the ropes.
Also, here is a little Cheat Sheet I put together to help me find the Help Pages on the many ways you can format and or modify your Profiles.
One of the biggest helps when starting on WikiTree is to view as many existing profiles as you can, Like the Bears's Porridge, some are too cold and some are too hot and some are just right. ;) You find the style you like.