Cardinal signs impose and enforce. Cardinal means hinge—the mechanism by which a thing moves. Cardinal signs are also called Movable.
Libra is air. Air means idea or concept. Libra is imposing a concept or idea. Right vs wrong, rationality.
Aries is fire. Fire is will and volition. Aries imposes their will. Takes action rooted in volition.
Spring 2018 was Mutable Madness, remember?
Now, we've got the Cardinal Convergence.
Cancer is the Ace of Cups
Libra is the Ace of Swords (I mean, look at Justicia!)
Capricorn is Ace of Pentacles
Aries is Ace of Wands.
Your Cancer house is where you are pressed to stay tuned in a response to present needs. This may conflict with what you're doing in your Capricorn house.