I dont know what Im doing yet, but I've read damn near everything on the internet and try to apply that knowledge to my own grow. This forum is a great help. And, personally, if it seems like "bro science" I ignore it. I know Im new, but I dont think the learning ever stops.
Always a student of the craft. Never too old to learn, and .
new tech, more science, understanding light spectrums and nutrient requirements.
Learn to love growing and your results will always grow.