BIL who was a commodities trader says he was brutal on the floor back in the day.
Good for him.
I traded physicals. Non board traded stuff. Was a hoot.
Sesame seed, Safflower oil, other esoteric stuff. Was fun for a 22 yr old to do. Burnt out on it by 28. Taught myself to code after that and made software. A whole ERP system that is extremely industry specific. Even has a Psychic billing module. That has been my pinnacle of thought so far. (They wanted to bill clients accurately based on what should have happened, but there are huge consequences if it did not... GPS tracking data is involved. So far, 100% accuracy.)