It can definitely be overwhelming to read about everyone else’s awesome kids, especially at CC - which clearly skews high.
There are lots and lots of families who regret their past financial choices, especially at the start of the college search process. Especially because so much is unknown at this point.
Advice is the same as others above - be up front with your kids about your financial situation. But also, be grateful that your husband has retired, that you are still working, and that your mortgage was not such an impossible monster that you had the choice to pursue other family activities.
Most importantly, it sounds like you raised a couple of great kids. Don’t be afraid to tell them that you know the process is different now than when you went to school, so you’re all going to learn together about how to solve this next problem. Based on those scores, your kids are clearly smart enough to understand what a limited budget really is. If they don’t already, they probably will think they are smarter than their parents anyway.