It is not always beneficial to use all the dice. Sometimes it is better to land on a closer space that has a better chance for rolls than going to a further space with less. Boosts don't get removed from the dice pool, so prioritize using them first!
Usability tips
Unable to see the rolled dice? Click/touch the thumbtack icon to the right of the panel that is blocking your view.
If you are playing in real time, it's recommended that you change your preference to display game logs "below player panels". This will keep the dice in view, with the side effect that you cannot see the game log. You can toggle this preference at any time.