Congratulations on making it to the end of the course! While watching great content like this feels good - It doesn't actually mean anything unless you put the learnings into practice. With that being said, here's some ideas for "homework" for you:
If you want to learn how Rahul's cofounder Alex made $750,000 per year at Robinhood working ~35 hour weeks, you can go to the next level and take his much deeper and more concrete productivity course here: Maximize Your Productivity As A Software Engineer