imo the best way to learn is to jump into a project. if you want some basic intuition on neural networks, 3blue1brown has some great videos. for everything else, just google things and you'll find lots of resources. medium and towardsdatascience articles have saved my life so many times while working on ML/DL uni projetcs. if you're looking to play around with current research, use https://paperswithcode.com.