This is my second run through Ludum Dare and I certainly took several lessons with me from last time.
Firstly, this time I aimed for Compo. I held no vision of actually managing to get there, but last time I felt too relaxed with "it's just Jam" and that affected the final product a lot.
Secondly, I aimed MUCH lower this time in scope. Instead of an overly ambitious project, I had a single, simple mechanic in mind and built on that.
Thirdly, there's no such thing as perfection. Don't spend too much time getting everything perfect, it will take your whole life and longer to do that, there will always be something you think is wrong with your own work.
Fourthly, relax. Don't procrastinate, but also don't stress about it. It's about having fun and enjoying game development, if you stress about the submission you'll miss the main goal of this entire event.
And with that, I released what I think is a game. It has rules, it has interactions. Might barely fit into the category, but here we are, it's submitted for your approval.
https://ldjam.com/events/ludum-dare/52/plant-school (Yes, I forgot to rename it before hitting Publish the first time)