While learning Vim, I went through the `vimtutor` many times until I felt really comfortable. After that you can try more advanced stuff (I applied the same pattern with the oni[0] built-in tutorial). Last but not least there are Youtube channels: theprimeagen[1] and Greg Hurell[2] come to my mind. I particularly recommend theprimeagen (he is a Netflix engineer) because he has videos about real-life workflow. And speaking about real life, I was amazed by this video[3] the first time I saw it, it's a very good introduction to macros.

0: https://github.com/onivim/oni

1: https://www.youtube.com/channel/UC8ENHE5xdFSwx71u3fDH5Xw

2: https://www.youtube.com/channel/UCXPHFM88IlFn68OmLwtPmZA/vid...

3: https://youtube.com/watch?v=hraHAZ1-RaM