No, you can’t not use it. You can’t keep it still, qi that is not moving is called “stagnant” qi and can kill you, you don’t want that. Living beings are meant to always be moving or they get sick.
Cultivate every day several times a day, more and more getting better and better. After some time you find the microcosmic orbit starts running by itself, and breathing in more qi feels natural and effortless. Then you’re getting somewhere.
You also will find, that you don’t need to take it all in and store it to use an abundance of qi - you are permanently connected to all the qi in the universe, like the cosmos is your battery, if you know how to connect up to it. You don’t hoard it you develop the ability to have it flow through you.
There’s a basic cultivation method here, and a bunch of books listed here. And a million videos on youtube from these authors and others, follow-along tutorials and all sorts.