20 self-improvement 30-day challenge ideas: build new habits Published 4 years ago • 37K plays • Length 15:46 Download video MP4 Download video MP3 Similar videos 12:11 20 popular 30-day challenges for self-improvement: which should you do? 0:16 5 habits to improve your life 4:45 how to change your life in 50 days | project 50 challenge 2024 10:25 a 30 day self growth challenge