You’re ok. More plants doesn’t mean more weed. But having a full area does, provided you can provide the necessary requirements for photosynthesis.
If you’re looking to maximize your yeild per seed, then you’ll want to grow less plants and run a long veg time. If you’re not as worried about seed cost, you can run more plants and harvest sooner with a shorter veg time. It’s usually pretty relative to what you’re trying to accomplish. Unless you’re growing autos, then you have to kind of guesstimate lol.
Lights, arrrrh… it’s always the damn lights haha.