Can you explain how time management and setting limits are related? That's a simple question. It is obvious to realize the answer. But it's hard to format it. I am very convinced that as long as one can not explain well, he does not fully understand the answer. He may have quite the right thought, but he does not have a clear view of the situation. Therefore some teachers can not explain well. When you have a clear vision you have a lot of choice. It's easier for you to see the situation from the other side. You may find some surprise decision. You will be more competitive.
First of all, there is no time management with out limits. It happened, for example, when you do nothing. You spend your time You do not have to look at it. You have no goals. But if you set goals, you'll think of time. How to reach the goal in time. Or if you have many goals, you will think about the time needed to achieve each goal and how to reduce it.
Second, time management skills are very special. If you have no goal, it is very difficult to train these skills. It's not obvious, but it's easy to understand. If you do not have a goal, you're not interested in doing something. If you do not have motivation, it's hard to do anything, including training periods.
And thirdly, it's very difficult to achieve a big goal with time management, because it's not easy to set a time limit for goal. Usually you have to reach the goal as far as you can. So you spend some time, but you have a strong motivation. And time management comes to your help. You increase your abilities, you lose less time, you have more time to achieve the goal, so you will be better.