I think most of us had the same issue starting out, maintaining a shave ready edge.

Once most get to the 100 shave mark they seem to be able to maintain a shave ready edge for some time.

But it takes time to master, I've been at it for 3 1/2 years and I am still learning how small changes in tension and pattern have a different effect on different razors.
Stropping can be Bad (damage the edge in a moment) Meh (no harm, but no improvement) and Good (able to maintain an edge for 30-90++ shaves with just linen and leather.

If you can find a meet or a mentor it might save you some time, especially if you are interested in edge upkeep with a hone.

I think you are referencing the 12000 Grit or 12K hone, a 1200 would be a bevel setter.
And yes, with a 12K Naniwa or similar quality synthetic hone you can maintain a razor (that is not damaged) "for ever".
A good Barbers hone will also do the same.
And there is pastes and sprays oh my...down the rabbit hole we go.

If your razor was honed with a tapped spine you will need to tape the spine when you touch up. (ask, any reliable vendor will be glad to tell you how the razor was honed)

You will also need a way to lap/maintain the hone...please see the fantastic honing threads and sticky's

It is frustrating until its not, then it becomes rewarding, challenging and fun.

Good luck and smooth shaving..