Internal and External Swings Highs and Lows

Basically new to trading crypto and have no prior experience or knowledge and still trying to learn everything I can. I am starting of learning price action without using any indicators.

The thing I am most confused about is finding and differentiating internal and external swings highs and lows.

Is there a certain guideline rule on what makes a internal swing, external swing, fractal swing like how many candles make these? How would you know which is which etc?

Been struggling for a few days trying to understand this and I’m just so dumb……

Never heard of an internal swing high or internal swing low.