I run ads all the time now, so I'm past being a total beginner. But some months they pay off and some months they just quietly eat my budget, and I can't tell you which it'll be going in. It feels less like a skill and more like a coin flip I keep paying for.
More people experience this than they realize.
You run ads but bleed budget and can't reliably make the numbers add up.
If this sounds familiar, the Library can help you find the bigger picture.