What's the one thing that would make managing your finances easier?

I'm trying to understand what managing money actually looks like. If you're comfortable sharing:

• What's the hardest part about managing your money that people who aren't struggling don't seem to understand?
• Is there one financial task that takes way more mental energy than it should?
• Have you ever tried a budgeting or finance app? If so, what did you hope it would help with, and where did it fall short?
• If you could wave a magic wand and have one thing about managing your finances become easier, what would it be?

I'm much more interested in real experiences than advice. Thanks to anyone willing to share.