If your Dovo was never honed by a pro by hand and only had the factory edge, it is possible the bevel was not completely right to start with. Dont get me wrong, some of them come with a decent edge but most dont.

Follow what Marty/euclid said. It takes many many hours to learn to hone properly. Touching up an edge can be done but can also be a waist of time if it was never right to begin with. You have most of what is needed to put a new bevel and edge on your blade but...

I recommend sending it out to be done 100% correctly. Then you will know what the perfect edge should feel like. Pick up a couple low cost vintage razors and start your honing learning on them. Dont learn to hone on a blade you plan on relying to shave with. You will be disappointed often.