The Ultimate list of best self-investment ideas

Hi, I would like to help me to build the ultimate list of best self-investment ideas for which you will spend time without doubt. I will start with following: 1. Build a side hustle 2. Read as more you can books 3. Exercise 4. Pick up new hobby (football, armwrestling, table tennis and etc.) 5. Meditate 6. Invest time in thinking of what are those things which if i do they will grow me and the opposite - think about what are those things which if i do and keep do, they will not grow me. 7. Learn new skills like - coding, copywriting, sales and etc. 8. Spend less time on social media, games, TV and etc. 9. Build new relationships - new friends, meet new people. You can use for that purpose for example meetup.com. 10. Commit to action not to procrastination.