The forums here changed early this year, it's taking a bit to get people up and going again. The help section takes most people through pictures pretty well, some of us are still having problems with some devices or issues.
https://www.quiltingboard.com/qb-help-center-f27/
My problems are mostly with file size plus I have a pretty well locked down system in terms of security, I have an old digital camera and not a smart phone, I go to this site to reduce my pictures because it is quick, easy, I just use their defaults and it doesn't set off my security settings.
https://www.reduceimages.com/
We are pretty sure that the 5 mb limit is for all possible attachments and it is best to be under 1.