The word "no" might be one of the shortest in the English language, but it can also be one of the hardest words to say . However, if you want to actually carve out some space to focus on yourself, you'll have to get more comfortable using that word — without guilt.

Those who want to get better at saying "no" to other people and start putting themselves first may benefit from a simple change in mindset, Nedra Glover Tawwab , a therapist and author of the upcoming book "The Balancing Act: Creating Healthy Dependency and Connection Without Losing Yourself," said on the TODAY show recently.

Therapist tip of the day: A 'no' is a 'yes' to something else

The truth is that putting yourself first might require saying no to others , which can be a challenge. And what if that other person

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