One of the biggest differences I see in people who are undergoing a conscious period of personal growth is that the "overwhelm" and frenzy that characterises everyday life starts to recede very quickly. They start feeling like they have more time, not less, because they get super-conscious about what they choose to fill their day with, and what they will no longer tolerate.
Unhappy people generally suck at prioritising. Their time gets dragged and pulled in a dozen different directions and they reach the end of each day feeling frazzled, that they have been constantly rushing from one thing to the next, but that they have achieved little of consequence.
This is because unhappier people spend time on what's immediately in front of them not what they have consciously decided is most important to their life. Their time will get sucked in different directions depending on what or who in their life is shouting the loudest at that moment. By losing sight of their true priorities in the tsunami of life - stuff to get done, overwhelm is guaranteed.
Happy people know that the choices you make consistently reveal your true priorities. Your priorities are not what they say they are, they are what you consistently do and choose in favour of. Your priorities are not something you say, they are something you live.
Identifying our true priorities is really important. Only when we step back and consciously do that, can we make better choices in the moment that will lead us towards them. Getting clear on your true priorities cuts through the clutter and noise like a knife through butter and we can make the most purposeful choice in the moment and avoid being sucked into other people's stuff (and it usually is other people's stuff).