It's totally normal to feel a bit unsure about when to move on to the next lesson. I can relate to the struggle of getting those chords just right.
Here's what I've found helpful in my journey: Don't stress too much about playing flawlessly every single time. It's all about progress, not perfection! If you can get through the songs with just a few slip-ups, that's awesome progress! It means you're getting the hang of it.
I'd say give yourself some time to practice and play the songs until you feel comfortable and confident with them. You don't need to nail it perfectly every time before moving on. Just make sure you're enjoying the process and having fun with it!
But if you ever need some extra guidance and tips, check out this cool blog I found at https://staytunedguitar.com/
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