Focus on one thing and see the end result, I have been erratic in my decision makings. Secondly, I made the mistake of thinking - I have all the time in the world not knowing that they are stages of growth as time progresses. Let me explain. If you missed the time of going to school while living with your parents, it is going to cost you more as the years go by. 

1. If you missed buying a house when you have the time, chance, resources and energy, it will cost you more later.

2. If you missed educating yourself about marriage, life will be a living hell living with a woman as confused as you as you are.

3. If you do not know what you want in life, other people will make decisions for you.

4. When children showed up in marriage, the game automatically changed - it is no more about you but the family. No more spending 100k on phones when the child needs diaper, daycare, doctor's visits, etc.

5.Life is wonderful, handle with handle with prayers.

I also Regret not using my time more effectively learning new things.

Instead of being a plain-ol lazy ass playing video games and wasting time on the internet I should have learned more. Even if it got me nowhere it gives you a foundation to learn more complex things as time goes on, letting you spot opportunities.

You see, even if you feel like your wasting your time cause you wanna jump right in and start a million dollar business in one week, you need to build your mental foundation that lets you predict outcomes and spot trends and opportunities.

Not leaving Nigeria in the Mid 90s when I had what It takes.

Inability to quit my previous job at the right moment. I wasted some good years with them. This had really affected my growth trend. Thankful though.

Investing in MMM after countless warnings on nairaland and other people.