Here's the thing. Learning is hard. There's no going around it. You'll need to grind through practice problems, write essays, memorize facts, etc.

And you need to do that. It trains your brain. If you simply rely on calculators, LLMs, and Google Search, then you likely can forget about doing advanced science.

It doesn't mean that you have to _master_ everything. Far from it. But you need to apply real effort to various subjects to train yourself.