Before you go, check this out!
We have lots more on the site to show you. You've only seen one page. Check out what 100 Push Ups a day looks like for 3, 6, and 9 MONTHS!!!
If the goal is strictly to learn and you are on a budget, the added benefits of paying for a Coursera Verified Certificate are nice, but unnecessary. Audit the course and learn for free. That said,...