You may like to practice controlling your speed on scary steep descents and rough roads.
Don't ride your breaks, but alternate front and rear, pulsing sometimes. If you ride the breaks, the rim could overheat leading to a blowout and a crash.
Learn to feel the heat of the rims and come to a complete stop to cool things down before continuing.
Try not to speed up oin desents, just control the speed at a comfortable rate.