The Challenge Substack by Cosmin Angheluta | Insights from Sidestack

The Challenge

About the Substack

Explore self-improvement challenges that fit your life. Get our practical advice on motivation, goal-setting, and productivity, along with easy-to-use infographics to help you track your progress and stay on course.

Free Subscription Benefits

Weekly self-improvement tips with actionable challenges and printable infographics to help you track your progress.

Paid Subcription Benefits

Monthly handpicked recommendations
Archive full access
Productivity Mastery and other Notion templates

Paid Subscription Plans

€50 a year
€5 a month

About Cosmin Angheluta

I’ve been where you are — overwhelmed, stuck, and searching for direction. Now, I help others break through those barriers with practical strategies, motivation, and tools that actually work.

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