Okay, so what am I doing wrong? I’m copying the url of the pic but when I paste it to replace my current profile pic it tells me that it has to be under a certain (.09...mb) size. Apparently the file size is larger than HB will allow....? Any ideas?
https://i.imgur.com/YL3Fhdi.png
Try this code. Direct link, hosted, so it shouldn't matter what size the picture is.
https://i.imgur.com/YL3Fhdi.png
This shouldn't be it, but go to your profile pic in the upper right-hand corner of any screen and click the drop-down next to your name, then select My Attachments. Clean out any extraneous pictures in there, and that should open up room.
I don't know why that would be the problem since the picture is hosted remotely, but it sounds like the kind of warning you're getting.
This happened for mine, too. I saved the image, uploaded it again via https://postimages.org and used the resize setting until it got small enough to upload via link. I guess the limit is around 100kb. For me the 300px size option was sufficient.