Ironically trying to predict what price will do in the next week is more difficult than trying to predict what it will be like a few months out. Ultra short time frames have little variance so they're easy to predict. Short-mid has enough variance to make it tricky. Long timeframe has so much variance that it evens out and becomes easy again. Ultra long timeframe has so much variance that you can't tell what it will even out to any more and it becomes hard again.

Similar concept as flipping a coin. You might flip it 3 times and get all heads but flip it 100 times and it averages out to 50:50.

Not a perfect analogy cause in markets it doesn't stay 50:50, as you go further out the average shifts. But I think it makes my point fine.