Look at what others with similar hair length, type, texture, AND density are doing. It is not enough to just look at women with a similar hair type to yours. Look for those with your length (or a length to which you aspire), texture (that is, fine, medium, or coarse strands - a measure of circumference), and density (that is, the number of strands on your head). Use women with two to all four of these characteristics as a starting point for adjusting your routine.
Find products with ingredients your hair loves. This step is especially applicable if your staple product has new ingredients, is discontinued, or is now out of your budget. Begin your search for a replacement by looking for a similar ingredients listings to your original staple product. Look for generics - some of which may be carried at Sally's Beauty Supply (for U.S. readers) - for example, "Hair One" in place of "Wen". Another option is to consider becoming a mixtress (that is, mixing your own product).
Use thicker, heavier products during colder weather. Products that work just fine during the warmer months may lose their effectiveness in the colder months. It may be necessary to incorporate or switch to heavier oils, conditioners, and butters. They will better protect your strands and retain moisture in your hair during this time.
To be continued ...