I've been studying MIT's OCW for Probability with a partner. It's a great course.

https://ocw.mit.edu/courses/6-041sc-probabilistic-systems-an...

We're 4 months in and on Lecture 15. These do take a while. I feel like I'm not getting everything and will need another round. I've been binge watching Stat 110 too:

https://projects.iq.harvard.edu/stat110

"All probabilities are conditional"