Alright, I know this is an extremely rookie question. However, its something that I just can't quite grasp.
How the heck do you choose the right type of fly pattern for a particular stream/river? How do you guys decide when to use a dry, nymph, scud, streamer, etc.? Is there certain literature I should be reading or videos to watch that can help me with this? Because, to be honest, most of the nymphs are similar to me. HELP PLEASE!