Please share what would you have differently before hitting your 30s? Any advice or regrets for those who have not hit the big 3-0.

Regrets:

1. Not educating myself more about finances and learning to invest in my early 20s.

2. Not pushing myself harder to be as physically fit as possible (to serve as a buffer against ageging).

3. Not investing the time and focus to get really good at a particular skill. e.g. playing a musical instrument or learning a foreign language.

Advice: Do the opposite of the above :D

As gary vee would say: "you're still a baby".

you have another full cycle of 30 years, don't let that second cycle go to waste.

Try out as many things as you can
Don't get too affected by what others think of you
Increase your financial literacy
Spend more time with your family or loves one
Take good care of your health (have enough rest, exercise and eat in moderation)

Turning 30 soon too and I am glad to have been exposed to this community