1. Watch the 3blue1brown neural network series for a gentle refresher on the underlying maths and the big picture of neural networks (and to be inspired): https

1. Watch the 3blue1brown neural network series for a gentle refresher on the underlying maths and the big picture of neural networks (and to be inspired): https://www.youtube.com/playlist?list=PLZHQObOWTQDNU6R1_67000Dx_ZCJB-3pi https://www.youtube.com/playlist?list=PLZHQObOWTQDNU6R1_6700... 2. Run through the catalogue of StatQuest videos for topics of interest in machine learning etc. This includes step-by-step maths and code explainers: https://www.youtube.com/c/joshstarmer/playlists https://www.youtube.com/c/joshstarmer/playlists 3. Watch more 3blue1brown videos if you need to step further back to refresh on calculus and linear algebra (that's most of the maths you'll need). If you're hooked and can't get enough of the above content, then congratulations and welcome to the Matrix.