[ttyprintk]

For the algorithmic trading course, Quantopian is perhaps the biggest useful site for beginners. It relies on Python fundamentals.

Algorithmic trading is an offshoot of AI with (at least at first) ML. With a math and science background, AI/ML will be more useful than networking-protocol-heavy cryptocurrency.

Sites like Kaggle are gentler introductions to AI/ML than algorithmic trading, in my opinion. For math and science, Kaggle might look better on a college application.