I thought I made a mistake after watching the first lecture, "Creating an S3 Bucket and Hosting a Static Website." After that, I listened to the lecture on building a LAMP web server, and I really liked how it explained everything I had been curious about while studying on my own, and I thought, "I should have bought it earlier and listened to it, and saved time." One thing I regret is that it would have been better if it had been updated to the changed EC2 creation screen, as it is also mentioned in the notice!