Here’s a whole playlist from that same author that is amazing: https://youtube.com/playlist?list=PLrttDbiWQ1XO1iHAszAsPobYSoR0uQg_1. The first one there will probably fuck you up though - it did me - as paradigm shattering is supposed to do, but hey, I did want to warn you in advance (to be absolutely clear: yes it is SOOO worth it!).