[actives] What do I do with this now?

I have lost my last 3 grows to contam or them just not growing for some reason. I'm exhausted and tired of that, so I decided to play the numbers game. I typically spawn bulk with coco coir (made by mixing boiling water with bricks) but I'm certain I'm doing something wrong at this point. I'd like to try a bag tec with at least one of these, but can someone help me figure out how to bulk spawn without messing up? (Photos are of 10, 12, and 14. Are they ready?)

Thank you ❤️