SHAPE A BETTER YOU
If we boil life down to what will make us all the happiest, and living our best life, the 3 keys to a perfect, successful, happy life are Health, Wealth & career.
It doesn't matter about all the fluffy stuff self development teaches you, you need to be the healthiest version of yourself and in the best shape you can be body & mind, you need to have money saved because life literally requires you to have money to get by worry free, and you need to do work that you care deeply about.... Everything else is background noise, filling in the gaps.
The three topics i mentioned above are the base you actually want to build on in life.
How healthy you are - As if you don't have your health, you have nothing
How secure you are in life - as if you don't have savings and good money thoughts your life can become panicked, anxious, worrisome and you cant ever do fun things.
As if you aren't doing meaningful work you love, you will never be fully happy anyway.