Regarding the different Assets suggestion this is just my opinion.
Trading a portfolio of a single asset can work provided correlation between strategies is low, although I would be mixing timeframes personally.
Also certain reactor settings will work better for different assets so I expect that’s why Petko has courses focusing on a single Asset.
Additionally you could combine portfolios from different assets. I personally just trade single EAs but would definitely be happy with converting Ea Ea to a portfolio Ea that combines several strategies for a single asset, time is the only reason I don’t do it at the moment/I don’t feel it’s necessary even if it would be good.