Before you learn to hone a razor, can you already maintain a razor on a finishing stone or barber hone ?
If you don't have the skill to keep a razor shaving you don't have the hands to start one from scratch or even midway.
With honing I think it's best to start at the top & work your way down. Every mistake you make on a coarser medium = more steel removed. No big deal if you look at razors as being disposable but it's best to to buy a junker for your first bevel sets or edge restorations.

A 4/8" razor will be a little more difficult to hone ,strop & shave with for some people. Practicing on a razor you're happy to shave with is the easiest path.