These are some of the links that I used to learn some Ai skills for beginners

https://www.youtube.com/watch?v=uBtdYZLs1yE

https://www.youtube.com/watch?v=dyWpgmyelio

https://creativecloud.adobe.com/cc/learn/illustrator/in-app/explore-shapes

https://creativecloud.adobe.com/cc/learn/illustrator/in-app/jump-into-color