These videos are in addition to the Chris Donner work on angular motion to help you understand the topic.
https://youtu.be/zAx61CO5mDw
Relationship between angular velocity and speed | Physics | Khan Academy
https://youtu.be/9QDKnQm_poI
Tangential and Angular Velocity
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Simple Harmonic Motion
https://www.youtube.com/watch?v=roLo5v7k7zM
Part 1: Solving for d, v, a (10 min 2 sec)
https://www.youtube.com/watch?v=9nk6pvSFuIo
Part 2: Max d and v / d and v at different locations (6 Min 34 sec)
https://www.youtube.com/watch?v=oQnrGz81Eo0
Part 3: Period and frequency
https://www.youtube.com/watch?v=7Kmlio3Jlho&t=202s
Energy Conservation and SHM (7 min 19 sec)