You will hear on fishing shows anglers mention a pattern used to catch fish. They make it sound like some sort of magic. Patterns are mentioned though rarely explained and if it is only in vague and limited terms. You likely have everything needed in your tackle box needed to do the same.
You are fishing one day catching fish easily. The next day the bite is non existent. This is normal with cold front conditions. Fish are less active, requiring slow presentations. Cooler waters and barometric pressure affects fish. You have to change the approach to catching fish.
There is a time and place for everything is an old saying. It does apply to fishing. What knowledge is needed is where the fish are at what time. This can vary throughout the year. There are three items fish rely on no matter the time of day or year. The items are structure, cover and food source.