Sophia Calculus!

[BigJohn1975]

Any feedback on the calculus?

I took Sophia Calculus.
First I started with the Fundamental College Algebra and Statistics.
Then I moved onto the College Algebra and College Statistics.
Then I set aside a weekend where I told myself I would do nothing but Calculus on Sophia.
I started Saturday morning at 0400, and worked until 0200 in the morning on Sunday. It was about 18 hours of actual Sophia time when you subtract time for eating and other breaks.
I slept for 4 hours, got up at 0600 Sunday, and worked another 15 hours.
Finished it in 2 days, barely passed. Took 33 hours of actual work.
By far the hardest class out of the 41 I've taken on Sophia.