One of the main reasons for feeling overwhelmed and lacking clarity in life is the inability to say "no". You might take on way more than you can handle because you are reluctant to decline a request. Whether it is your professional or personal life, taking on too much to please others is self-damaging.
Imagine being at a party and people piling food on your plate incessantly while you don't say anything! How do you think that would go? You wouldn't take that silently, would you? At some point you're going to say,"Please stop, I'm full. I don't need more".
We must learn to say "no" politely and firmly so that we don't get submerged with things to do for others leading to chaos in our lives.
Here's a short video on this topic: