I’ll start by plugging Harvard’s free courses catalog as well as Udemy
Edit: Gonna add 2 more I remembered-
Blender - I wish I had more time to learn it, but I did start the infamous “Donut Tutorial” once!
Watch Cartoons Online - Lots of good older stuff!
I went to Philadelphia and there were hardly any places to get water at all. There were always stores selling water bottles literally $8 in one instance around nearly everywhere you looked