Not everyone uses a planner the same way. Learning how to use a planner means something different for everyone, depending on what they are using a planner to do. For example, a student could use a monthly planner for goal setting and assignments, which is different from a stay-at-home mom, who could use a daily planner for meal planning or daily life. And the stay-at-home mom uses it differently than a business owner, who may be concerned with achieving a big goal every quarter.
The important thing is that figuring out how to use a planner and adjusting the general tips to your needs takes time, but it is well worth the effort.