You cannot outperform a lack of direction forever.

Effort can compensate for a lack of direction for a while, but not indefinitely, because the effort is being spread across paths that do not reinforce each other. You get tired at the same rate as someone going somewhere, without the accumulation. Eventually the gap between your exhaustion and your progress becomes impossible to ignore.

Rather than looking for more capacity, spend an hour deciding what you are actually aiming at. Then cut one thing that does not serve it. Direction is usually cheaper to fix than stamina.